Remember the last time you went deep sea exploring? How uncomfortable the seats and poor quality your sound system were? Yeah, you've probably never been deep sea exploring, so you've no preferences. However, if you did decide to take four buddies to the bottom of the sea and wanted to sit in leather seats and listen to music on a Bose sound system the U-Boat Worx C-Explorer 5 personal submersible might be the choice for you. The $2.46 million craft can reach depths of up to 300 meters, offering a full 360 degree view, operating for up to 16 hours underwater on a single charge and even has A/C.