So you want to spend some time exploring underwater environments? This Amphibious Sub-Surface Watercraft has you covered. It features an above-water upper hull and a two-person cockpit to provide you with a 180-degree view underwater. You get controls for two horizontal underwater thrusters that provide up to 6 knots forward/4 knots backward movement. You can also make 360-degree turns.
While on land, you can rely on the craft’s ground track systems to make 360-degree axis turns and negotiate up to 30º gradients. The battery banks provide you with 110 hours of operation. The bad news? This watercraft is not too cheap.