Flordia-based Triton released renders of its radical upcoming 660 AVA submarine, giving passengers a literal front-row view of the sea. The 660 comes in either seven or nine-passenger configurations, and eschews the traditional spheroid or cylindrical hull design for a "free form" oval-shaped layout. This allows for side-by-side seating in a curved theater arrangement — no fighting for window seats here. The seating arrangements are modular, allowing for several different floorplans, from group dives to private two-person setups. The dive depth of the 660 is in its name — 660 feet — and the acrylic hull has a refractive index similar to water, making it all but disappear when submerged.