The Ganymede and Io are designs from Nick Schade's "Jupiter Point" series of kayaks. This family of lightweight kayaks are versatile, easy to build, and fun to paddle. With distinctive and attractive three-panel hulls and decks, these kayaks are speedy to assemble, have a lot of character, and handle as well as boats three times their cost and complexity. Io is a 7-foot-long child's kayak built in a weekend or two from a single sheet of plywood. The payload for the Io is a maximum of around 75 pounds. The prototype Io weighs an astonishing 12.5 pounds (5.7 kg). Io is light enough that if you are in a kayak or other boat alongside your child, you can pick up and empty Io and help the child climb back in after a capsize. Construction is extremely simple, but rugged enough for real use. The small components make for an unusually economical kit (especially when it comes to shipping!). Ganymede is a 13-foot recreational kayak built from just three sheets of plywood. The Ganymede design is ideal for smaller women or children under 120 pounds. They will find the Ganymede nimble, stable, and comfortable. Larger paddlers—over 120 pounds—fit easily in the large cockpit but will sacrifice some of the stability that a kayak designed specifically for their weight would have.