We just noticed the bus ad for RocketBoat at Pier 39 the other day and went home and looked it up right away. How long has this thing been around, and why hadn't we heard of it until now?

RocketBoat promises thirty minutes of high-speed and wet-and-wild fun that reportedly makes "grown men giggle like school girls," not to mention breathtaking views of the bay. Plus, the front page of their website has a whole slew of disclaimers and warnings -- we're there!

A couple of pro-tips from RocketBoat veterans are not to go on a cold day or while hungover. Good thing it runs through October, when we have that two-week summer somewhere between now and then.