When Discovery tiles are drawn from the bag and placed onto the ocean or sonar boards, they are placed with the undiscoreved side facing up. It has a dark background.

Once a Discovery tile is flipped on a players ocean board, it is considered to be discovered and will have a light blue background side facing up.

Point of Interest tokens also have two sides - undiscovered side has a dark background and shows a "?" symbol, while the discovered side shows 1 of 4 side - statue, chest, boat and shipwreck. The effects of these tokens vary game to game, and once discovered, unless otherwise specified by Expedition rules, POI tokens are removed from your ocean board.

At the end of the game, only discovered tiles and tokens score points.