You get to solve puzzles that lead you to hidden relics of the past and are given to you by your friends at the start of each dive.

Some of the four given clues might be misleading and it is up to you to determine which clues will lead you to the treasures of Mystery Waters. For each relic found, you get rewarded with coins that can be used to upgrade your equipment (some of the equipment also upgrades your abilities).

To make things a bit more intense, your time underwater is limited by your Oxygen level.

If you are interested in beta testing Mystery Waters, you can sign up on the official website.