caption: Oneta Resort, Eastern, Fiji - Diving the Great Astrolabe Reef with Oneta Island Resort. This is a divers paradise. We never saw another dive boat the entire week as there is only one other resort that can even dive the North part of the Great Astrolabe Reef from their land based location. The resort is top notch too. Best of all there is a mantra cleaning station a 2 minute boat ride away where if you ask they will stop and check if the mantas are home and let you snorkel with them before or after your dives.