Tanjung Sari is a lovely ambient dive found in Blue Lagoon, with an average depth of around 9 meters. The maximum depth is 18 meters making it a lovely dive for beginner divers. It is also another great spot for macro photography and night diving and is well known for being a dive site with many sharks. It is also a very diverse dive site with each depth introducing the diver to a different group of marine life; starting with reef fish at the bottom and pelagic fish and Mola Mola (Sunfish) at the bottom. Whilst other dive sites have higher numbers of Mola Mola, it is still possible to see them here at this dive site.

The site itself is made up of a coral formation that plateaus at around 8 meters. There are some larger bommies and also rocks, which have been overtaken by coral growth. There are also soft corals, which house many different types of shrimp and nudibranchs. On closer inspection, divers can find pipefish and stonefish; divers must be careful not to touch these deadly fish. There are many sweetlips, perch, frogfish, scorpion fish, and ribbon eels including the yellow striped species.

Napoleon wrasses also make an appearance and between August and October, it can be common to spot Mola Mola or Sunfish at deeper depths. Turtles are also an occurrence on the reef with many Green turtles to be found on the reef.

The different sharks divers can expect include reef sharks, Wobbegong sharks, and if you are a very luck diver perhaps a coral cat shark. At around 20 meters, divers will be able to see many sleeping reef sharks, which often are, undisturbed by divers watching them. This is a remarkable site and it is well worth visiting Tanjung Sari just to see these sleeping beauties.