Triton’s new long, lithe submarine travels twice as fast as most other underwater vessels, with an executive interior that includes two leather lounges, mini-bar and head.

Personal subs have tend to be acrylic spheres with pontoons, the bulbous transparent capsules offering exceptional views, but not much interior space. Besides looking clunky, these subs typically crawl through the water, and that two- or three-knot speed is often minimized by ocean currents.
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