People take pictures on the boat shuttle from Wizard Island to Cleetwood Cove in Crater Lake National Park.

This summer is the last one to swim or explore Crater Lake by boat until 2029. Here's what it's like to adventure at the deepest lake in the U.S.

Crater Lake boat tour and hiking on Wizard Island Finally, at 11:15 a.m., my shuttle arrived, and I was off to explore the cinder cone volcano of Wizard Island. Crater Lake offers three boat tours.