She Gods of Shark Reef

Chris Johnson helps his brother Jim, who is a fugitive on a murder charge, to escape from the law on his boat. They are shipwrecked on a reef near a supposed uninhabited island but are pulled from the shark-filled waters by Mahia, one of a group of sarong-clad, nubile beauties living there. Their leader, Queen Pua, tells them that they will have to wait for a company supply boat to take them away. After Chris saves Mahia from being sacrificed to the shark-gods by Queen Pua and Jim steals the Queen's cache of pearls, the men try to make good their escape with a stolen canoe.