The Transparent Canoe Kayak

This canoe-kayak hybrid has a transparent polymer hull that offers paddlers an underwater vista of aquatic wildlife and waterscapes unavailable in conventional boats. Seating two people, the sturdy canoe hull is made of the same durable material found in the cockpit canopies of supersonic fighter jets. Adjustable seats allow paddlers of different heights to personalize their leg room.

Source: hammacher.com