SIT ON TOPS- KAYAKS
This particular craft was developed in early 1980. It's a Subdivision of kayak and has certain features of a Canoe too. Sit on tops are fairly flat, surfboard-like crafts and have depressions for buttocks, legs and feet.
Lack of close marriage of peddler to craft differentiates this with true kayaking. Peddler sits on the top of the craft and takes the grip from the foot wells. Your seated position is little higher than a Kayak.
Can even surf the ocean or river rapids. You will need lot of skills to negotiate white water.