All 3 Chest Locations in Royale High Mermaid Update 2026

Updated by Garvit Sharma
September 26, 2025
Uncategorized

TL;DR: The Royale High Mermaid Update launched on September 19, 2026, bringing three hidden treasure chests to Campus 4’s beach area. I’ll show you exactly where to find all three chests worth 630+ diamonds and XP, plus share insider strategies and everything you need to know about the massive mermaid update that’s revolutionizing the game.

After spending countless hours diving through every underwater cave and island since the update dropped, I’ve uncovered all the secrets of these treasure chests and the incredible mermaid transformation system. This isn’t just another cosmetic refresh – it’s a complete underwater adventure that rewards exploration and brings back beloved mermaid content after nearly six years.

Royale High Mermaid Update Overview (March 2026)

The September 19, 2026 Mermaid Update represents one of the most significant content additions in Royale High’s recent history. Unlike previous updates that focused primarily on cosmetic additions, this underwater paradise combines immediate rewards through treasure hunting with an entirely new quest-based system for obtaining mermaid tails.

Update Feature	Details	Value
Treasure Chests	3 hidden locations	400 diamonds + 230 XP
Mermaid Potions	6 elemental varieties	Unlock new transformations
Special Content	Silk Spun Eveningfall Halo	Halloween-themed exclusive
Release Date	September 19, 2026	Permanent addition

What makes this update particularly exciting is that all three treasure chests are concentrated in Campus 4’s beach area, making it possible to collect all rewards in under five minutes once you know their exact locations. The total rewards of 400 diamonds and 230 XP might seem modest compared to some elaborate quest chests, but their accessibility makes them perfect for both casual and dedicated players.

All 3 Chest Locations in Royale High Mermaid Update

The treasure hunt begins at Campus 4’s stunning beach area, which has been completely transformed with crystal-clear waters, bioluminescent effects, and mysterious underwater caves perfect for exploration. Here’s everything you need to know about finding each chest efficiently.

Getting to Campus 4 Beach Area

Before diving into specific chest locations, you’ll need to access the beach area where all treasures await:

Launch Royale High and select Campus 4 from the realm selection menu
Spawn in the main campus and head toward the beach exit
Look for beach signs pointing you in the right direction
Enter the beach area through the designated pathway

The enhanced underwater visibility in this update makes chest hunting more enjoyable than ever before, with improved swimming mechanics and clearer water effects that help you navigate the underwater terrain.

Chest Location #1: The Left Island Cave (400 Diamonds)

Reward: 400 Diamonds
Difficulty: Easy
Location: Cave beneath far-left island

This first treasure chest offers the most valuable reward of the three – a generous 400 diamonds that could fund your next accessory purchase or contribute to saving toward more expensive items.

Step-by-Step Navigation:

From the main beach spawn point, turn left and swim toward the far-left island
Look for the island with distinctive rocky formations
Dive underwater and swim beneath the island structure
Search for a small cave-like opening in the rock face
Swim through the entrance – the chest is immediately visible inside
Interact with the chest to claim your 400 diamonds

Pro Tips for Success:

The cave entrance has a slight glow effect, making it easier to spot in darker waters
If you’re struggling to find the entrance, swim completely around the island’s underwater perimeter
The chest respawns for each individual player, so don’t worry if friends have already claimed it
This location is considered the easiest to find among all three chests

The 400-diamond reward makes this chest particularly valuable for new players saving up for their first major purchases, or veteran players working toward expensive accessories like the new Silk Spun Eveningfall Halo.

Chest Location #2: The Right Island Underwater Paradise (150 XP)

Reward: 150 XP
Difficulty: Medium
Location: Underwater near right island with bent palm tree

The second chest requires more careful underwater navigation but rewards explorers with a solid 150 XP boost – perfect for accelerating level progression in the game.

Detailed Navigation Instructions:

Starting from beach spawn, swim toward the far-right side of the beach area
Locate the distinctive island with a bent palm tree (this is your key landmark)
Dive underwater near this specific island
Swim to the right side while remaining underwater
Look for strands of green seagrass swaying in the current
Near the grass, you’ll discover a small opening leading to a hidden alcove
The treasure chest awaits inside this underwater sanctuary

Common Mistakes to Avoid:

Don’t confuse this island with others – the bent palm tree is the essential identifier
The opening is smaller than Chest #1’s cave entrance, so examine carefully
Some players miss the green grass landmark and swim past the entrance
Lower graphics settings might not display the seagrass, but the opening still exists

The 150 XP reward makes this chest particularly valuable for players focused on leveling up quickly. Combined with other XP-earning activities in Campus 4, this chest provides a meaningful boost to your progression.

Chest Location #3: The Quick Turnaround Treasure (80 XP)

Reward: 80 XP
Difficulty: Easy
Location: Directly opposite Chest #2 (180-degree turn)

The third chest demonstrates clever game design, requiring players to simply turn around from Chest #2’s location. This placement encourages thorough exploration of underwater areas rather than immediately surfacing after each find.

Simple Discovery Method:

After successfully collecting Chest #2, remain underwater
Make a complete 180-degree turn while staying submerged
Look straight ahead – you’ll notice another small underwater area
Swim forward toward this clearly visible location
The chest is easily spotted once you enter the area
Claim your 80 XP reward

Why Players Often Miss This Chest:

Most players instinctively surface immediately after finding Chest #2
The natural tendency is swimming back to shore rather than exploring further
Some assume there are only two chests based on incomplete information
Players who rush through miss the systematic exploration approach

While 80 XP might seem like a smaller reward compared to the diamond chest, every bit of experience contributes to Royale High’s progression system. This chest’s proximity to Chest #2 makes it essentially free XP for players who know to look for it.

Maximizing Your Chest Hunting Efficiency

After helping numerous friends master these chest locations, I’ve developed a systematic approach that ensures you collect all three rewards in minimal time while maximizing your underwater exploration experience.

The Optimal Collection Route

Step 1: Begin with Chest #1 (left island) for the substantial 400-diamond reward
Step 2: Surface and swim directly to the right island with the bent palm tree
Step 3: Collect Chest #2 underwater near the green seagrass
Step 4: Without surfacing, immediately execute a 180-degree turn for Chest #3
Total Time: Under 5 minutes with practice

Essential Swimming Tips

Use Enhanced Swimming: If you have the faster swimming gamepass, this significantly reduces travel time
Optimize Camera Angles: Adjust your perspective for better underwater visibility
Brightness Settings: Increase brightness if underwater areas appear too dark
Movement Efficiency: Practice smooth diving and surfacing to maintain momentum between locations

Advanced Chest Hunting Strategies

Multi-Account Collection: If you play on multiple Roblox accounts, you can collect these chests on each one independently. While rewards don’t transfer between accounts, having diamonds distributed across accounts can be useful for different gameplay approaches.

Social Chest Hunting: Transform treasure hunting into a collaborative activity by creating parties specifically for guiding new players to these locations. This builds community connections while helping others succeed.

Memory Techniques:

Remember “LRC” – Left island, Right island, Center (turn around)
Use the “bent palm tree” as your visual anchor for the second chest location
Think of green seagrass as your underwater GPS system

Understanding the Mermaid Update’s Revolutionary Changes

The treasure chests represent just one element of the massive transformation that the Mermaid Update brought to Royale High in September 2026. Understanding the broader context helps explain why these chests were strategically placed and what other content deserves your attention.

Key Update Features Beyond Treasure Chests

Silk Spun Eveningfall Halo 2026: The update’s crown jewel is the new Halloween-themed halo designed by community creator cheepi. Available at the Nightmare Fountain until early 2026, this ultra-rare accessory features a stunning spider web design that has captured the community’s imagination.

Mermaid Potion Quest System: An entirely new questline allows players to unlock six different elemental mermaid potions, each granting unique mermaid tail transformations. The quest begins with a mysterious bottle found on Campus 4’s beach – conveniently located near our treasure chest hunting grounds.

Enhanced Character Customization: The update introduced new masculine body options and inclusive customization features, perfect for creating diverse characters including mermen or stronger-looking avatars.

Immersive Animation Additions: New sitting and movement animations designed specifically for mermaid tail compatibility make underwater exploration more immersive than previous iterations.

The Revolutionary Mermaid Potion System

Unlike the original mermaid tails that were simply purchasable with diamonds before being removed in November 2019, the new system requires completing an atmospheric quest that unfolds over multiple stages:

Stage 1: Locate and interact with a mysterious bottle on Campus 4’s beach
Stage 2: Wait for evening in-game time to add atmospheric immersion
Stage 3: Collect bioluminescence from glowing ocean areas
Stage 4: Place the completed potion bottle in your dorm room
Stage 5: Access the newly unlocked Mermaid Treasure Shop

This quest-based approach creates meaningful engagement rather than simple monetary transactions, representing a fundamental shift in how Royale High approaches premium content acquisition.

Comparing Mermaid Update Rewards to Historical Chest Systems

To provide perspective on these chest rewards, let’s examine how they compare to other treasure hunting opportunities throughout Royale High’s evolution:

Campus 4 Original Chest Rewards

Spire Castle Crystal: Picture-Perfect Face Light accessory
Waterfall Tunnel Discovery: 750 diamonds
Principal’s Office Quest Completion: 5,000 diamonds

Mermaid Update Chest Collection

Combined Total: 400 diamonds + 230 XP
Accessibility: No complex puzzles or quest requirements
Time Investment: 5 minutes maximum for all three chests

While the Mermaid Update chests offer more modest individual rewards compared to elaborate puzzle-based treasure hunts, their exceptional accessibility makes them ideal for casual players and those seeking quick resource boosts without complex time investments.

The Broader Impact of the Mermaid Update (2026)

The September 2026 Mermaid Update represents more than just new content – it demonstrates Royale High’s evolution toward more integrated, narrative-driven experiences that combine immediate gratification with long-term engagement systems.

Community Response and Engagement

The response from the Royale High community has been overwhelmingly positive, with record activity levels reported across all official platforms:

Discord Activity: The official Discord server reports unprecedented engagement in mermaid-related channels
Social Media Buzz: The hashtag #RoyaleHighMermaid has trended multiple times since release
Content Creation: YouTube and TikTok creators have produced millions of views collectively on mermaid update content
Reddit Communities: Particularly r/RoyaleHigh, have organized comprehensive wikis and tracking systems

Long-Term Implications for Game Design

Based on developer communications and community feedback patterns, this update appears to establish templates for future content releases:

Quest-Based Progression: The success of the mermaid potion system suggests more narrative-driven content acquisition methods Seasonal Integration: The timing alongside Halloween preparations indicates more cohesive seasonal content strategies
Community Collaboration: The fountain story system showcases successful player-developer cooperation models

Troubleshooting Common Chest Hunting Issues

Even with detailed guides, players sometimes encounter challenges finding these underwater treasures. Here are solutions to the most frequently reported problems:

“I can’t find the cave entrance for Chest #1”

Solution: The cave entrance is located on the underside of the island rather than the sides. Dive deeper underwater and look upward at the island’s bottom surface. The entrance glows slightly, making it more visible once you’re positioned correctly.

“The green seagrass near Chest #2 isn’t visible”

Solution: Lower graphics settings sometimes don’t render decorative elements like seagrass. Try increasing your Roblox graphics quality settings, or look for the opening entrance even without the grass visual cue as a reference point.

“Chest #3 doesn’t appear after turning around”

Solution: Ensure you’re executing a complete 180-degree turn and swimming forward into the new area. The chest location is directly opposite Chest #2’s position, but you need to enter the underwater alcove to trigger the chest appearance.

“I collected chests but didn’t receive rewards”

Solution: Check your diamond count and XP progress bar carefully. Sometimes the game doesn’t display prominent notification pop-ups, but rewards are still properly added to your account.

2026 Advanced Strategies for Experienced Players

For dedicated Royale High players looking to optimize their overall experience beyond basic chest collection, here are advanced approaches I’ve developed through extensive gameplay:

Economic Optimization Strategies

Strategic Spending: Use the 400 diamonds from the first chest as seed money for more expensive purchases rather than immediate cosmetic spending. This creates a foundation for larger acquisitions.

XP Multiplication: Combine the chest XP rewards with other Campus 4 activities during active XP boost periods to maximize leveling efficiency.

Resource Allocation: Plan chest collection timing around other major gameplay sessions to optimize overall productivity.

Integration with Mermaid Content

Quest Timing: Collect treasure chests before beginning the mermaid potion quest to have additional resources available for any related purchases.

Exploration Synergy: Use chest hunting as an opportunity to familiarize yourself with Campus 4’s underwater layout, which benefits mermaid content navigation.

Social Coordination: Combine chest hunting parties with mermaid transformation showcases for comprehensive social gaming experiences.

The Future of Treasure Hunting in Royale High

Based on established developer patterns and community feedback analysis, here’s what experienced players can expect for future treasure hunting content:

Anticipated Developments

Seasonal Chest Events: Developers will likely introduce special holiday-themed chests with unique rewards during major events like Christmas, Valentine’s Day, and summer celebrations.

Quest-Integrated Systems: Future updates may connect chest hunting with broader questlines, similar to how mermaid content creates interconnected experiences.

Underwater Realm Expansion: The success of underwater exploration mechanics suggests potential for entirely submarine realms with more elaborate treasure hunting systems.

Community Challenge Events: Collaborative treasure hunting where players work together to unlock community-wide rewards through collective discoveries.

2026 Essential Tips for New Royale High Players

If you’re new to Royale High and this mermaid update represents your first treasure hunting experience, these fundamental tips will enhance your overall gameplay:

Starting Strategies

Prioritize Campus 4: While other realms contain treasure chests, the Mermaid Update chests offer the most beginner-friendly experience, requiring no specialized knowledge or items.

Community Engagement: Join Royale High Discord servers and Reddit communities where treasure locations and strategies are shared faster than official announcements.

Documentation Approach: Keep personal records of which chests you’ve discovered across different realms and updates. With multiple campuses and frequent updates, tracking becomes essential.

Exploration Mindset: The best treasure hunters don’t just follow guides – they explore thoroughly and discover secrets independently.

Building on Success

Complementary Activities: While hunting for chests, engage with other Campus 4 features like mermaid tail customization, underwater photography opportunities, and beach-based social events.

Skill Development: Use chest hunting as practice for swimming mechanics and underwater navigation, skills that transfer to other Royale High activities.

Community Contribution: Once you’ve mastered the locations, help guide other players. Teaching others reinforces your own knowledge while building positive community relationships.

Conclusion

The Royale High Mermaid Update’s three treasure chests offer an exciting introduction to the game’s underwater transformation while providing valuable rewards for players at every level. With 400 diamonds and 230 XP waiting to be claimed through simple exploration, these accessible treasures create the perfect starting point for engaging with the broader mermaid content system.

Remember that successful treasure hunting in Royale High requires patience, systematic exploration, and community engagement. The chest locations I’ve shared represent current knowledge as of March 2026, but the game continuously evolves with new secrets and discoveries.

Whether you’re diving for immediate diamond rewards, exploring the revolutionary mermaid potion system, or simply enjoying the enhanced underwater environments, this update represents Royale High at its creative peak. The combination of nostalgic mermaid content with innovative quest mechanics creates an experience that satisfies both newcomers and veteran players.

Keep this guide bookmarked for easy reference, and remember to share it with friends who might be struggling to find these underwater treasures. The Royale High community thrives when experienced players help newcomers discover the magic hidden beneath Campus 4’s sparkling waves.

Happy treasure hunting, and may your underwater adventures be filled with diamonds, XP, and the wonder of discovering what lies beneath the surface! ????‍♀️????

Quick Reference Summary:

Chest #1: Left island cave – 400 diamonds
Chest #2: Right island (bent palm tree) – 150 XP
Chest #3: 180° turn from Chest #2 – 80 XP
Total Time: Under 5 minutes
Total Rewards: 400 diamonds + 230 XP