Brownsea was one of the first campsites to be opened on the other side of the Tenny River after the bridge was constructed in 1966.
 
 
 

The Brownsea Island Scout Camp was the world’s first Scout camp, and is regarded as the formal birth of the worldwide Scout movement. Robert Baden-Powell ran the camp from August 1 to August 8, 1907 on Brownsea Island in Poole Harbour on the South coast of England. Many of the concepts still used worldwide in the Scout programme were first used at the Brownsea Island camp.  It began in an experimental way with a man camping on an island with twenty boys.  Scouting began with one man.  Robert Baden-Powell was simply tackling a problem which came his way without any idea of beginning anything on a large scale.

~Wikipedia