Although the currents can be very strong, it is always possible to dive staying in the shade of the rock, that is either the Northern or the Southern side, depending on the direction of the current. It is highly recommended to follow the dive master, as on the East and West corners there can be strong downwelling currents. The southern side of batu Bolong gradually slopes, while the northern side is more rugged, with a wall, pinnacles and rifts.

The dive starts close to the rock, on a 5-6 m deep coral garden, to get down to 28-30 m. The coral garden on the top hosts an impressive amount of invertebrates and thousands of colorful reef fishes. Big fishes , as sharks, napoleon wrasses, giant trevallies, big emperors and schools of fusiliers and surgeon fishes swim nearby the the steep walls.

Although the shallow water coral garden is relatively small, the site is interesting for snorkelers for the good chances to spot big fishes.