You should see the escape "pods" that they use on offshore oil rigs. They're more in the shape of a boat but they're up at work level of the rig. To escape, the workers get in and strap themselves to a seat. Then the escape unit is cut loose and it falls nose first into the sea. Probably at least a 50 foot fall, maybe more.
I imagine the unit completely submerges when it hits the water and then comes back up.
But I guess if you're on a burning oil rig you'll welcome almost any way of getting off.
Go into the world and do well. But more importantly, go into the world and do good.