The Geyser Terrain is a terrain in Build A Boat For Treasure. It has geysers, hence the name. Upon a boat touching a geyser, it will fire a stream into the boat, launching it. Occasionally, it could launch a boat out of the terrain and into the void, however, an invisible ceiling has been added to prevent boats from flying out.
Also, if players go inside either of the large waterfalls on the right, they will gain access to a potion room that requires a puzzle to unlock Chillz' Plushie.
The Geyser Terrain contains 8 water falls in total, 4 on each side. On the right side of the water falls, there is a secret to reach the Chillz' Plushie.