Welcome to Sandy's house. It's a treedome filled with AIR!!! This is the only place in Bikini Bottom where Sandy doesn't have to wear her underwater suit. But "sea critters" have to wear helmets filled with water so they can breathe.
Let's go check out the Flying Dutchman's Ship!
"Howdy, y'all! Welcome to my treedome! Why not stay for some "Texas Tea" and cookies?"