Additional engines provide thrust in order to propel the craft.

Some are driven by electric motors, some by gasoline engines, and some require the rider to propel the craft by pedaling.

However, the engine was not designed to provide thrust to propel a craft.

A number of kayak designs are used, but all are aimed at better using the waves to propel the craft.

Oars, with its openings were sealed with tight-fitting leather flaps, extended out the sides to propel the craft through the water, at depths up to 4.6 metres (15 ft).