Diaoyu Island activist Tsang Kin-shing practises a maritime survival drill off Kau Sai Chau, Sai Kung and is later rescued (inset). More than 12 protesters joined the drill, during which they also rehearsed how to plant flags, ahead of a trip to the Japanese-occupied archipelago on Sunday. Deputy leader Mr Tsang said the team was determined to set off on its third trip to declare Chinese sovereignty on the disputed islands, although they had yet to collect enough money. 'The whole trip costs about $430,000. So far we have collected $100,000. We will continue our fund-raising in the coming week,' he said. 'Our boat might be blocked by Japanese vessels. Our boat might even be destroyed during the confrontation, but we shall continue our trip annually until the Japanese leave the Diaoyu Islands.' They are expected to be joined by activists from Taiwan near the Diaoyu Islands. Activist David Chan Yuk-cheung died during a protest voyage to the islands in 1996.