It's not the first time I post about really unconventional mean of transport to explore the waterworld and have fun in the sea, like the following examples:
Waterbird
Transparent Kayak
Squba
nevertheless I'm sure this is the coolest thing I've ever seen in this field. By far.
Innespace is the company that have invented this fantastic sort of moto-dolphin water vessel named SeaBreacher (there is also a single person version named simply Dolphin). This thing uses the same canopy as an F-22 fighter jet, keeping the roomy interior nice and dry inside a watertight seal and it's powered by a little engine in the back that allows you to do all sorts of fun stuff like barrel rolls, jumps, dives and drownings. "Swimming" just under the surface and than jumping outside just like a real dolphin! So Cool!
The best way to understand what SeaBreacher is able to do, however, is looking the following commercial:


SeaBreacher is for sale and if you buy one and you're not just sutisfied jumping alone in the sea there's also a racing league in which you can compete to show the world who's the best Dolphin on the scene!