Moderately hazardous: 4-6
Highly hazardous: 7-8
Extremely hazardous: 9-10
The western side of North Stradbroke Island faces into the southern half of Moreton Bay. The sandy shore receives no ocean swell, except at the very north-western entrance. Only at the protruding Dunwich and along the north-western Amity shore are the bay waves sufficiently high to maintain low energy sandy beaches fronted by tidal flats and/or tidal channels. As the bay narrows south of Dunwich, the low energy conditions permit mangroves to dominate the shore, while between Dunwich and Amity extensive sand flats and tidal shoals extending 12 km into the bay also maintain calm conditions and a mangrove-fringed shore. In all, there are five bay beaches between Dunwich and Amity Point.
Adams beach (1576) is a 700 m long strip of high tide sand facing south-west into Moreton Bay, located on the southern side of Dunwich. The beach is calm, except during south-westerly wind conditions, and is fronted by seagrass covered sand flats that widen from 100 m in the north to 300 m in the south. The southern end of the beach grades into a mangrove-fringed shore. The northern end of the beach is bordered by the port facilities of Dunwich, including the conveyor belt for the mined sand and jetty for the ferries and shipping.
These are five usually calm beaches, with the best swimming at the main Dunwich Beach between the jetties and One Mile, while at Amity the beach in front of the caravan park is relatively safe, so long as you do not swim out into the deep tidal channel with its strong currents. Strong currents also parallel the usually calm Amity Point Beach.
Most people come over to Dunwich and Amity to fish and relax. They fish from all vantage points into the deep tidal channel, including the jetties, groynes and off the beaches.
The quieter western side of North Stradbroke and location of two of the main settlements, that are fronted by usually calm beaches.