A boat has sunk after getting into trouble in big seas off Swansea Heads.
Police say a large wave hit the 5.5 metre tinny, causing it to barrel roll into Moon Island at around 12:00pm on Sunday.
Two men onboard scrambled onto rocks.
Both were wearing lifejackets.
The NSW Ambulance helicopter winched both to safety.
One man was treated for abrasions and shock.
Video/photos: Dylan St John