Clear Blue Hawaii began developing kayaks in 2002. There are now three basic models that cover a spectrum of uses. One of those, the Napali, is innovative not only for its clear urethane construction, carbon Kevlar frame and light weight (approximately 26 pounds), but for its collapsible design. Though 13 feet when fully assembled, the Napali can fold down small enough to fit into a hiking backpack. On a yacht, where space is limited, a trick like that means more storage and even more toys for guests to enjoy. Price: about $7,100.

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