Making a cat trax style of beach roller is easy and very cheap. just get some wheel barrow wheels from a hardware store, make sure thay have a big internal ID for the axle. about 50mm (2.5 inches) then buy some poly pipe (plumbers pipe) of the same diameter and a length of heavy wall galvanised or alloy tube. use the poly pipe on either side of the wheels (held by rivets) to locate them and there you go! This solution is not the best but is much better than sitting it on the rocks. You can further refine the rollers by making a mould of the hull at the balance point and then attaching that to the rollers, cover it in carpet and then you have a great setup for next to nothing.<br><br>