Sea Caverns

The **Sea Caverns** are the deep caves under the Bay and The Open Sea where many fish live, requiring higher-level rods to even reach and a Sinker rod upgrade or flick to properly navigate.

Exploration of the Caverns is impossible without the use of a Lightbulb (which is unlocked by catching an intact Bulbfish).

## Sub-regions

**Bay caves.** Located directly below the player's starting area, the Bay. The highest region of the Caverns, and easily reached with a Sinker lure. It is necessary to move forwards and backwards to successfully pull fish out of the Bay caves, and so requires the use of a boat.

**The Nightfish Sire cave.** Below and slightly to the east of the Bay caves, the Nightfish Sire cave can be found. This is a single large, circular cavern usually filled with 3-4 Nightfish Sire, and occasionally Nightfish. Directly above the entrance to this cave, the Explorer hat can be found.

**Central cavern.** The largest internal section of the western Caverns, a semicircular chamber with a large opening in the ceiling. It is located to the east of the Bay caves and the Nightfish Sire cave, and west of the chasm. It also opens into the Cave Shark's lair. The floor of the central cavern sits at the maximum depth of the Master Rod without upgrades. Bonefish are found on the floor here.

**Cave Shark's lair.** A small chamber west of the central cavern, below a rocky outcrop. Home to the elusive Cave Shark.

**The chasm.** Sometimes called the ocean cleft or the basin (not to be confused with the coral basin). The chasm is a huge trench in the seafloor, immediately west of the reef wall. It goes down to maximum depth, although the walls continue down beyond the bounds of the map. Theoretically one of the deepest areas in the game. There is a small cave in the west wall that connects it to the central cavern.

## Fish

The Caverns are home to a range of rare fish, some of which come up to the surface at night and during storms.

### Small fish

* Yang - In a small cave directly below the Bay, in a school of three.
* Yin - In the open water of the chasm, at Cavern level, in a school of three.
* Bombat - Lines the walls of the central caverns, can be lured out with bombs or rocks.

### Medium fish

* Snoutfish - In the upper sections of the Caverns west of the chasm, but may also follow other fish to the surface.
* Nightfish - Occasionally found in the Nightfish Sire cave, following Nightfish Sire around in groups of two or three. Also found in deep open ocean, and comes to the surface at night.

### Large fish

* Cavefish - Common, found in most parts of the caverns west of the reef wall. May come out of the caverns at night.
* Stankfin - Usually found in the Bay caves but can be found in other sections west of the reef wall as well.
* Nightfish Sire - Exclusively found in the Nightfish Sire cave.
* Thresher - Commonly in the large, open central cavern.
* Bonefish - Sleeps on the floor of the central cavern. Must be woken with a bomb.
* Gorbon - In the caves to the west of the chasm.

### Huge fish

The Sea Caverns are home to only one Huge fish - the Cave Shark. It can be found in its lair west of the central cavern, and is regarded as one of the most difficult fish to catch on Realism mode.

The Yang and Cavefish, in the Bay caves.