Yoyleland

Yoyleland is a track unlocked when you are rank 43. It is an expert track. The bloons exit by jumping into the water pool, which you can put water towers in.

Special Things
Black bloons going through the Yoyleberry bushes will turn into Lead Bloons.

Coming to this track after the Yoyleblimp uses the Yoyleland ability, you will find the tower on this track. You also get an acheivement for doing this worth 10 AP.