• A rope. You drop in through a trapdoor, and a rope is how you climb back out.
• Something for cyclops, rotworm and bear — they live down there.

The chest is 3 floors under the surface. Going down over it, this is what each floor uses:

1. Ground: down through a trapdoor.
2. 1 down: down through a ladder.
3. 2 down: down through a ladder.

• 1 — the way in: a trapdoor, ground
• → — the treasure lies this way

• 2 — a ladder, 1 down
• → — the treasure lies this way

• 3 — a ladder, 2 down
• → — the treasure lies this way

• 1-2 — the chests
• 3 — Thais Lighthouse (2)
• 4 — Lighthouse Thais Exit

There are 2 chests here under 2 quest numbers, so you can take them all.