How to Enter Tidefall Fisch (March 2026) Complete Guide

Updated by Shruti Agarwal
January 19, 2026
RobloxGaming

If you’ve been grinding Roblox Fisch lately, you know the map is deceptively massive. Just when you think you’ve caught everything, a new secret biome pops up. Currently, everyone is trying to figure out how to enter Tidefall, a hidden underwater zone that holds some of the game’s most elusive catches and valuable rewards.

But here’s the catch: You can’t just swim there. Tidefall is locked behind a gear check and a hidden entrance that isn’t marked on your standard map. If you go in unprepared, the water pressure will crush you before you even see a fish.

As a veteran angler who has spent way too much C$ on diving equipment, I’ve broken down exactly where to go, what you need to buy, and how to survive the dive. This comprehensive guide will walk you through every step, from gathering the right equipment to navigating the treacherous underwater passages.

Quick Overview: Tidefall Entry Requirements

Requirement	Details	Cost
Location	Underwater Opening	–
Coordinates	3223, 130, 850	–
Total Investment	Essential Gear	55,000 C$
Quest Required	Lost Diver Quest	Free
Special Item	Abyssal Tonic	500 C$ (after quest)

Essential Gear: Don’t Dive Without This

Before you even look at the GPS, check your wallet. Tidefall requires specific high-tier equipment. If you try to enter with basic gear, you will face instant death due to oxygen depletion and pressure mechanics.

Mandatory Equipment Checklist

You need a total of 55,000 C$ to get started. Here’s the mandatory loadout:

Item Name	Cost	Location	Why You Need It
Advanced Diving Gear	15,000 C$	Buoy behind Sunstone Island (Coords: -790, 125, -3100)	Essential for surviving deep-sea pressure and long dive times
Tidebreaker	40,000 C$	Desolate Deep	Drastically increases underwater movement speed. You won’t make the swim without it

Optional but Highly Recommended Gear

Item	Cost	Benefit
Super Flippers	30,000 C$ (available in Tidefall)	Enhanced swimming speed
Water Bubble	Various locations	Additional pressure protection
Submarine	Various	Helps with initial descent but can’t reach entrance

Pro Tip: Don’t skip the Tidebreaker. It’s not just a luxury; the swim to the entrance is long, and without the speed boost, you might run out of oxygen even with the advanced tank.

Location: Where is the Entrance?

Once you’re geared up, hop in your fastest boat. You’re heading to the Underwater Cave zone.

Key Location Details

GPS Coordinates: 3223, 130, 850 (official coordinates)
Visual Cue: Look for multiple boats floating on the surface with Diver NPCs nearby
Landmark: You’ll see a red boat among the group – this is where the Lost Diver quest starts

Note: You don’t actually need to talk to the NPCs to unlock the area initially, but you’ll need to complete the Lost Diver quest to get the Abyssal Tonic for safe entry.

Step-by-Step Guide to Entering Tidefall

This is the tricky part. The entrance is hidden within the underwater terrain. Follow these steps carefully:

Step 1: Reach the Underwater Opening

Spawn a boat at Moosewood Village shores
Head east towards the Ancient Isles direction
Look for the group of diver boats at coordinates 3223, 130, 850
Jump onto the red boat to start the Lost Diver quest

Step 2: Complete the Lost Diver Quest

This quest is essential for safe Tidefall entry:

Talk to the left Diver NPC on the red boat
Select “I’ll look for him” to start the quest
Equip your gear: Advanced Diving Gear, Tidebreaker, and Super Flippers if available
Jump into the ocean and dive straight down
Navigate the pressure zones – watch your purple pressure bar!
Cross two bridge-like obstacles as you descend
Find the sunken submarine – this is your main landmark
Locate the Lost Diver on the right side of the submarine
Rescue him by holding ‘E’ to carry him
Return to the surface quickly before pressure depletes
Deliver the diver to the red boat NPC

Reward: Abyssal Tonic (can be purchased for 500 C$ after quest completion)

Step 3: Navigate to Tidefall Entrance

Now that you have the Abyssal Tonic:

Return to the underwater entrance at the same coordinates
Drink the Abyssal Tonic for pressure protection
Dive down past the sunken submarine
Look for the small hole next to the submarine’s front/mouth
Squeeze through this gap – it’s tight but manageable
Inside the cave, look to your left for a violent stream of water
Touch the water stream – it will automatically teleport you into Tidefall

Understanding the Pressure Mechanics

This is crucial for your survival:

Blue Bar: Oxygen level – depletes as you swim
Purple Bar: Pressure tolerance – depletes in deep water
Death Condition: If either bar depletes completely, you’re eliminated
Abyssal Tonic: Negates pressure damage for a limited time
Tidebreaker: Reduces oxygen consumption by increasing swim speed

Exploring Tidefall: What Awaits You

Tidefall isn’t just one area – it’s an extensive cave system with six primary sublocations:

Main Areas Overview

Sublocation	Special Features	Bestiary Reward
Tidefall (Central Hub)	NPCs, shops, Obelisk puzzles	Obelisk Bobber, 80,000 C$, 215,000 XP
Collapsed Ruins	Ruins Diver NPCs, ancient architecture	50,000 C$, 175,000 XP
Crowned Ruins	Crowned Diver NPCs, premium gear	80,000 C$, 175,000 XP
Coral Bastion	Coral Diver NPCs, coral-themed items	50,000 C$, 175,000 XP
Sunken Reliquary	Infusion Altar, Magical Diver quests	50,000 C$, 175,000 XP
Thalassar’s Secret	Hidden area, exclusive items	Varies

Exclusive Fish Hunts

Each sublocation features rare hunt events with extremely low spawn rates:

Plesiosaur Hunt (Tidefall Castle): 0.2% spawn chance
Forbidden Plesiosaur: 0.02% spawn chance
Pliosaur Hunt (Collapsed Ruins): 0.05% spawn chance
Ancestral Pliosaur: 0.005% spawn chance
Goldwraith Hunt (Crowned Ruins): 0.5% spawn chance
Ancient Goldwraith: 0.05% spawn chance
Reef Titan Hunt (Coral Bastion): 1% spawn chance
Colossus Reef Titan: 0.1% spawn chance
Omnithal Hunt (Sunken Reliquary): 1% spawn chance
Awakened Omnithal: 0.1% spawn chance

Valuable Items and Equipment in Tidefall

Central Tidefall Shop

Abyssal Tonic: 500 C$ (essential for pressure protection)
Bait Crate: 120 C$ – Conception Conch: 444 C$ – Fallen Rod: 175,000 C$ – Super Flippers: 30,000 C$ – Tidemourner Head: 750,000 C$ – Withered Spear: 1,750,000 C$

Location-Specific Items

Coral Rod (Coral Bastion): 30,000 C$ – Royal Spear (Crowned Ruins): 3,750,000 C$ – Dripstone Collapse Totem: 35,000,000 C$ (extremely rare!)

Common Mistakes to Avoid

Based on my experience, here are the most common pitfalls:

Skipping the Tidebreaker – You’ll run out of oxygen before reaching the entrance
Ignoring the Lost Diver quest – Without Abyssal Tonic, pressure damage will kill you
Wrong coordinates – Some guides have outdated coordinates (3138, 132, 910). Use 3223, 130, 850
Not bringing enough C$ – Total investment is at least 55,500 C$ for gear + tonic
Missing the submarine hole – The entrance is easy to miss if you don’t know where to look
Poor oxygen management – Always monitor both blue and purple bars

Advanced Tips and Strategies

Money-Saving Strategy

If you’re short on C$, consider these alternatives:

Complete the Best Selling Fish in Roblox Fisch strategies first
Focus on Divine Secret Fish hunting for high-value catches
Check out the Fisch New Rods Guide for better fishing equipment

Speed Run Tips

Use the fastest boat available to reach coordinates quickly
Pre-equip all gear before diving
Memorize the route to avoid getting lost
Use the Tidebreaker continuously for maximum speed
Consider the Water Bubble if you have it for extra protection

Exploration Strategy

Start with the central Tidefall area to get oriented
Complete easier Bestiaries first for C$ rewards
Save the Crowned Ruins for later (requires more investment)
Look for Obelisk puzzles – they often lead to hidden areas

Why Tidefall Matters: The Rewards

Is the 55,000 C$ investment worth it? Absolutely. Here’s why:

Bestiary Completion – Tidefall contains exclusive fish needed for 100% completion
High-Value Equipment – Some of the best rods and spears are only available here
Future Content Gateway – Tidefall serves as a gateway to even deeper areas
Exclusive Hunts – Rare fish like the Sand Tiger Shark and others are only found here
Puzzle Content – Five Obelisk puzzles offer unique challenges and rewards
Economic Opportunities – High-value fish and items can significantly boost your C$ income

Troubleshooting Common Issues

Can’t Find the Entrance

Double-check coordinates: 3223, 130, 850
Look for the group of boats, not just one
The submarine wreck is your main landmark
The entrance hole is on the front/right side of the submarine

Running Out of Oxygen

Upgrade to Advanced Diving Gear immediately
Always use the Tidebreaker for speed
Consider the Water Bubble if available
Practice the route to reduce swim time

Pressure Damage Issues

Complete the Lost Diver quest first
Always use Abyssal Tonic before diving
Monitor your purple pressure bar constantly
Return to surface if pressure gets too low

Can’t Complete Lost Diver Quest

Make sure you’re talking to the correct NPC (left one on red boat)
The diver is located on the right side of the submarine
You need to carry him back – this is time-sensitive
Use Tidebreaker for the return trip

Frequently Asked Questions

Q: What are the exact coordinates for Tidefall entrance?

A: The official coordinates are 3223, 130, 850. Some older guides may reference different coordinates, but these are the correct ones as of March 2026.

Q: Do I really need all the expensive gear to enter Tidefall?

A: Yes, unfortunately. The Advanced Diving Gear (15,000 C$) and Tidebreaker (40,000 C$) are essential. Without them, you’ll die from pressure or run out of oxygen before reaching the entrance.

Q: Can I enter Tidefall without completing the Lost Diver quest?

A: Technically yes, but you’ll likely die from pressure damage before reaching the safe zone. The Abyssal Tonic from the quest is practically mandatory for safe entry.

Q: What happens if I die while trying to enter Tidefall?

A: You’ll respawn at your last spawn point with all your gear intact. However, you’ll lose any progress and have to start the dive over from the beginning.

Q: Is Tidefall worth the investment for new players?

A: I’d recommend waiting until you have at least 100,000 C$ saved up. While Tidefall offers great rewards, the initial investment is significant for new players.

Q: Can I use a submarine to reach Tidefall?

A: A submarine can help with the initial descent, but it can’t fit through the entrance hole. You’ll need to exit and swim the final portion.

Q: How long does the Abyssal Tonic last?

A: The Abyssal Tonic provides temporary pressure immunity that lasts long enough for a complete Tidefall dive. You can purchase multiple tonics for 500 C$ each from the Tidefall shop.

Q: Are there any shortcuts to entering Tidefall?

A: Unfortunately no. The gear requirements and navigation are intentional barriers designed as progression gates.

Q: What’s the best strategy for making money in Tidefall?

A: Focus on completing Bestiaries for the C$ rewards first, then hunt for rare fish during special events. Check out our Best Selling Fish guide for more strategies.

Q: Can I access Tidefall on mobile devices?

A: Yes, but the navigation can be more challenging. I recommend practicing with the controls in safer areas first.

Final Thoughts

Entering Tidefall represents a significant milestone in your Fisch journey. It’s challenging, expensive, and requires careful preparation – but the rewards are absolutely worth it. From exclusive fish to powerful equipment and future content access, Tidefall opens up a whole new dimension of gameplay.

Remember to save this guide and bookmark it for reference. The developers frequently update Fisch, and I’ll keep this guide current with any changes to coordinates, requirements, or new content.

Happy diving, and may your catches be legendary!