Despite the bad rep they get, water levels have some of the best music. Here are a few of my favorites.

TIMESTAMPS
Atlantis Banjo Tooie: 0:00
Dire, Dire, Docks Super Mario 64: 5:18
Current Capers Donkey Kong Country Tropical Freeze: 8:26
Water Temple Legend of Zelda: Ocarina of Time: 11:00
Ocean Night Terraria: 16:22
Water World Donkey Kong Country 3 17:55
Tidal Tempest (JP) Sonic CD: 20:50
Mangrove Cove (Underwater) Donkey Kong Country Tropical Freeze: 24:35
Jolly Roger's Lagoon (Underwater) Banjo Tooie: 27:33
Great Bay Temple The Legend of Zelda: Majora's Mask: 31:48
Funky Waters Donkey Kong Country Tropical Freeze: 34:13
Lake Lamode (Underwater Passage) Mario Odyssey: 38:50