Coracle

A coracle is a small, trivial boat used mostly in Wales but also found across a lot of parts of the British Isles. Oval in shape and very connected to half a walnut shell, the structure is made of a framework of split and interwoven willow rods, tied with willow bark. The outer layer was initially an animal skin such as horse or bullocks hide (corium), with a thin layer of tar to make it fully water proof - today replaced by tarred calico or canvas, or simply fiber glass. The structure has a keel-less, flat bottom to evenly extend the weight of the boat and its load across the structure and to reduce the required depth of water - often to only a few inches, making it ideal for use on rivers. Coracles are so light and portable that they can simply be carried on the fisherman's shoulders when taking place to and from his work. Coracle-fishing is perform by two men, each seated in his coracle and with one hand holding the net as with the other he plies his paddle. When a fish is trapped, each hauls up his end of the net until the two coracles are brought to touch and the fish is are then secured.

Air boats

Air boats, is also known as fan boats, and are flat-bottomed punts motorized by a propeller attached to an automobile or aircraft engine. The propeller has the typical shape and size of an airplane propeller and so requires a large metal cage to look after passengers and other users. The flat bottom allows air boats to find the way easily through shallow swamps and marshes as well as in canals, rivers and lakes; it can also be used on frozen lakes. The driver sits high on a platform to recover visibility and to permit spotting floating obstacles and animals in the alleyway of the boat. Steering is expert by swiveling vertical fins positioned in the propeller wash in the very rear of the airboat, so control is a function of current, wind, water depth and propeller thrust. Crabbing into the wind or current is necessary. The noise from the propeller and engine is quite loud; the greater part of the noise is produced by the propeller. Air boats vary in size from 18 person tour boats to trail boats accepted on a road trailer and suitable for two or three passengers.