The olive sea snake is a venomous marine reptile found in Indo-Pacific coastal waters, typically in shallow bays and reef areas. It has an olive or grey-brown body that flattens toward the tail, enabling efficient swimming. These snakes are highly venomous but generally docile; they surface regularly to breathe air and may investigate divers with curiosity rather than aggression. Encounters are best kept at a respectful distance—their venom is potent, though bites to humans remain rare.
Most likely to be seen at
Sites where its range and habitat make it likely — not yet confirmed by a logged sighting.