Buoy Base Galaxy
From Lumapedia
Buoy Base Galaxy is the fourth accessible galaxy in the Kitchen.
This galaxy contains a fortress that floats within a large bowl of water. It's one of two galaxies to have only two stars, the other being Gateway Galaxy.
List of Stars
Buoy Base 1 - The Floating Fortress
Buoy Base Secret - The Secret of Buoy Base
Routing Info
Buoy Base Galaxy is accessible after the player has collected 30 stars, with one of them being Beach Bowl 1.
Buoy Base Secret is one of the green stars needed to unlock the Planet of Trials. The others are Battlerock Letter and Dusty Dune Green.