The main objective is a collapsed Mayan-style water wheel lodged against a dam.
Materials needed:
Assembly:
Insert gears → attach strap → mount axle → then open the floodgate.
Critical warning: If you open the floodgate before the axle is in place, the wheel will shatter. You’ll have to dive into the rapids to retrieve a broken gear, which respawns piranhas. Yes, really. the island castaway lost world walkthrough chapter 3
Once repaired, the wheel turns, draining the lagoon’s eastern basin and revealing a staircase to the Subterranean Temple.
You’ll find a massive stone door carved with three animal symbols: Jaguar, Parrot, Snake. In the center, a hexagonal pedestal requires three gems.
To get the gems, you must light three braziers in the correct order: The main objective is a collapsed Mayan-style water
Once all three are lit, the pedestal rises. Place your Obsidian Key into it (the key is also the final gem puzzle piece). The door opens.
After the cutscene with the mysterious radio static, head west from your main camp until you find a boulder blocking a narrow river inlet.
Puzzle: Use the iron crowbar (crafted from scrap metal in Chapter 2) to pry loose the boulder.
Pro tip: If you didn’t craft the crowbar yet, backtrack to the crashed lifeboat site. The game soft-locks here for impatient players. Always check your crafting tree. Assembly: Insert gears → attach strap → mount
Your raft drifts into a foggy archipelago. You see distant campfire smoke from multiple sources. A new character—a grizzled old woman with a harpoon gun—steps onto a rocky shore and says: “You’re the third one this month. The volcano wakes at dawn. Welcome to the real island.”
End of Chapter 3.