40 squares puzzle of a cave lake landscape.

"Cave Lake Puzzle" is a free online mosaic puzzle with a picture of clear water gathering in the depths of Troana cave. The game will run in most web browsers on average desktop computers, laptops and tablets. Nature learning game. Such natural wonders are formed deep inside a cave and the water there is transparent and fresh. The autor of the futuristic Dune book refers to them in the fremen sietch, where they keep the magical water of Dune.