The Jumpinpin channel also known as The Pin lies between North Stradbroke Island and South Stradbroke Island. It has a fast moving tidal deep water channel not appropriate for swimming but is popular with beach anglers.
The name Jumpinpin is a Yugambeh word meaning Pandanus root.[1]
The bar area is shallow for a kilometre or so offshore so current local knowledge is required to safely transit the bar.
The area around the Pin is constantly changing with sand being deposited in one place after being moved by currents from another area. Just recently the mouth of Swan Bay was moved several hundred metres seaward creating an entirely new boating area.
The area is not really suitable for swimming as big tides and fast currents are the norm. Inland from the bar the Pin area consists of mangroves and mud banks, constantly being built up and then being washed away. In recent years Rat Island, The Mud Clump and Squire Island have disappeared.