Maku

This six-person rafting adventure isn’t for the faint of heart. Enter the dramatic lava-tube path, then Maku slides through a deep volcanic gorge before spinning wildly around bowl-like formations. When a geyser blasts its massive column of water high into the air, your raft gets sucked into a watery vortex and shot along the twisting flume before you’re deposited into a calm pool at the canyon’s end.