Beach Bowl Galaxy

Star #1: Sunken Treasure
To get the Power Star,

Star #2: Passing the Swim Test
To get the Power Star,

Star #3: The Secret Undersea Cavern
To get the Power Star,

Fast Foe Comet: Fast Foes on the Cyclone Stone
To get the Fast Foe Comet Power Star,

Purple Comet: Beachcombing for Purple Coins
To get the Purple Comet Power Star,

Secret Star: Wall Jumping Up Waterfalls
To get the Purple Comet Power Star,