Catamaran one man raft

From the April 23, 1953 Scout magazine (page 681):

In camp in Kirkcudbrught, Scotland, the TL of the Stamfordham village Troop built a catamaran and navigated it successfully across Brighouse Bay

Brighouse Bay looks about 300 metres / 300 yards across, but it was still a brave Scout who crossed it on something like that. We have used Camel rafts to get individual Scouts across the bay at Arrowe Park, but this is on the order of ten times further.