An Australian surfer is recovering after a shark attack in the waters off Avoca Beach.<br/> The victim is said to be a 28-year-old resident of the area, 75 kilometres north of Sydney.<br/> Witnesses say he was bitten on the arm.<br/> SOUNDBITE: Jack Gencher, witness, saying (English):<br/> "Arrived at the beach and I've seen a woman screaming out to another surfer to get out of the water, that there's a shark. I haven't realised yet that a shark has actually bitten a surfer. I see two or three people surrounding a man on the sand and then I come closer and I see there's blood all over the man's surf board and on the sand.:<br/> SOUNDBITE: Adam Harpaz, witness, saying (English):<br/> "This is what he told us: the shark got on his board and his arm was up and the shark just took a chunk out of his arm."<br/> The victim's said to be in a stable condition in hospital.<br/> Ambulance crews say he was surfing in the evening, a risky time.<br/> SOUNDBITE: Inspector Brad Folitarik, ambulance officer, saying (English):<br/> "There's inherent dangers there, surfing late at night, especially at dusk. Most surfers are aware that is a shark feeding time."<br/> Despite the attack people were again swimming at Avoca Beach with a helicopter patrolling overhead on the lookout for sharks.<br/> Paul Chapman, Reuters