‘Cliffo’ has always had a cub pack (7-11 year olds), nearly always a scout troop (11 to 15 year olds) and for some time, although not currently, a venturer unit (15 to 18 year olds). In keeping with the times the Group has for some time had both boy and girl members in both cubs and scouts.

‘Cliffo’ is a Sea Scout Group. It has introduced many young people to a lifetime love of sailing and boating. The emphasis of the group has always been on canoeing and sailing. Cliffo has a number of sailing boats (Tasars and Lasers), canoes, kayaks and rowing boats. One of the rowing boats is a four oar clinker built rowboat ‘Leo’ which was donated by the Mosman Lions club in 1958. ‘Cliffo’ also had a 23′ Bertram motor boat called ‘Twenty cents’ which was used as a safety boat for water activities. ‘Twenty Cents’ replaced ‘Ten Cents’, a much loved diesel powered timber hulled boat that unfortunately became too difficult for the group to maintain, in 2004. Recently, a 6m motor boat ‘Trophy’ was acquired to replace ‘Twenty Cents’.

In 2007 badly needed renovation work was completed on the shed which will allow it to remain a resource for the young people of Mosman for many years to come.