RHIBS are stable, high-performance, lightweight boats. The ones you'll find here are civilian vessels taken from a defunct amusement park and armed with machineguns. They seat six passengers, or seven if you bring the kids. Ah the memories.
Slightly slower than the Jet Ski, the RHIB is a lot more dangerous, due to the mounted machine gun attached. It doesn't offer much protection from enemy fire, though.

