After 15 minutes of walking, the tunnel opens up into a small cavern.
Hanging down from the ceiling are long vines of some kind, that sway
in the gentle breeze. At the far end of the cavern there is a pool of
some kind, with a small boat tied to a post.
The tunnel on the left has a bluish light coming from it, and as you
walk down that tunnel, you notice that it is cooler than before.