Six years ago we first heard about the MyCanoe, a two-person canoe that folds up like origami for transit and storage. Its makers are now back on Kickstarter with the smaller, lighter MyCanoe Solo 2.

For city dwellers, owning a bulky canoe is a logistical nightmare. That’s why Belgium-based paddling enthusiasts Otto Van De Steene and Thomas Weyn created the Onak, a full-size vessel that can be ...