This bay is situated at the eastern tip of Bali, to dive in this bay is more convenient from a small outrigger boat provided by local fishermen, the reef ridges spurs out into the bay and the current from Lombok strait can pick up making it difficult swimming back to the bay. In the bay lies a small Japanese freighter ship, 12 meters long sits at 6 to 12 meters water.
The history behind this ship was unknown. Black corals, colourful soft corals and Gorgonians have grown well on this ship and attract variety of reef fishes to its shelter. Bommies at 10 meters on the reef slopes are covered with gorgeous bushy Gorgonians and soft corals, good numbers of reef fishes, then the reef runs away down the slope out of the bay over 30 meters deep.
The name of this dive site is derived from the Giant Manta Ray patrols around it, often found by the divers and almost all the year around. To get this site is a must to cruise 50 minutes longer compared to other sites in Nusa Penida. Its location is the most south of the island; potentially hazardous its big surges, which could affect the technique of entry procedure, sometime starts from deep water.
The maximum depth would be 15 meters, mostly stay in 4 to 6 meters where Manta Rays patrol along the line of the cliff, no further deeper than 15 meters. The bottom composition is huge boulder rocks are stretching along the edge of the cliff, further left to the cliff do not exceed the ragged wall, where the current picks out up to the deep beside there will be no Manta Rays as well.
To dive here we start descending from the buoy close to the ferry dock; the channel runs further east to the hook of Tanjung Silayukti. At the beginning of the dive the reef is not interesting, much more interesting around the hook of Tanjung Silayukti with scattered boulder rocks, bommies, colourful hard corals, soft corals, number of Crinoids and a variety of tropical reef fishes. Turtles are frequently seen on this steeply slope reef that runs to 30 meters deep, the current is sometimes unpredictable changing its strength and direction that pushes into deep water. Don’t let us sucked into blue water and always ascend safely from the shallow reef of Tanjung Silayukti so the boat skipper can easily provide the pick up service by the end of the diving. Water temperature is frequently fallen roughly 26 degrees C.