Go back to Crescent Lake and board the ship. Head north along the east coast until you see a river connected by the ocean.

Bestiary checklist:
Cavern of Ice - B1 -> B2 -> B3 -> B2
- B1: Nothing here, follow the path to B2.
- B2: Nothing here, exit in the southeast corner.
- B3: Nothing here, exit to B2.
Back to B2, the room at the bottom has 2 chests. Note: There are cracks on the floor, you'll fall to B3 if you step on it.

- (C-116) Clothes (Monster): Right chest.
- (C-117) Flame Sword: Left chest. Equip the sword immediately.
Now step on any crack floor to B3.
Cavern of Ice - B3-B
There are 8 chests in this floor. Note: There are spikes on the floor, walk on them will drain your HP.

- Top room:
- (C-118) Mythril Gloves: Left chest.
- (C-119) Ice Armor (Monster): Right chest.
- Bottom room:
- (C-120) 7900 gil: Top-left chest.
- (C-121) 5454 gil: Top-middle chest.
- (C-122) 1180 gil (Monster): Top-right chest.
- (C-123) 9900 gil: Bottom-left chest.
- (C-124) 5000 gil: Bottom-middle chest.
- (C-125) 12350 gil (Monster): Bottom-right chest.

- (C-126) Ether: Left room.
- (C-127) 10000 gil: Bottom room.
Be careful to NOT step on the ONE crack inside the right room (G).
- (C-128) 9500 gil: Right room, left chest.
- (C-129) Sleeping Bag: Right room, middle chest.
- (C-130) Ice Shield: Right room, right chest.
Now you can step on the cracked tile. The staircase on your right will just bring you back to the outside.

Now exit the cave:
- Step on the cracked tile to B3-B.
- B3-B: The staircase to B2 is on the east side.
- B1: Exit the room and take the staircase in the top-right corner to leave the cave.