The Ravensburger memory Puzzle Underwater World combines finding matching pairs with classic puzzle-solving. The 36 puzzle pieces are made of sturdy cardboard and depict a detailed ocean backdrop. The motif pieces feature various sea creatures such as dolphins, jellyfish, stingrays, and a yellow submarine. By purposefully matching the pieces that belong together, precise observation and visual skills are strengthened. The game is well-suited for playing together and offers manageable motifs to assemble.