Bunaken Marine Park offers divers several distinctive styles of diving, and with over 50 dives sites within close proximity to Siladen Resort & Spa, you will never get bored diving here. The ocean bed in Bunaken Marine Park is extremely deep and the only shallow points are close to the shore line. There are very shallow coral reefs surrounding all five islands within the park — beyond the shallow reef, the seabed drops away very quickly, forming the walls that Bunaken is famed for. Many of these walls are vertical with huge caverns and overhangs, however some are more gentle slopes that allow more reef building corals to form.

On the North Sulawesi mainland, the seabed drops away much faster, and the seabed is mostly made up of mud or white sand. Due to the number of rivers flowing into the ocean, there are not many areas with spectacular reefs, however the harsh living conditions have allowed stranger things to flourish. It is here, on the mainland, that we can visit black sand sites for muck diving — looking for bizarre critters that have evolved unique survival methods. We also visit some of the white sand sites, which offer some beautiful coral reefs, but without the walls. There is also a fairly intact (entirely sponge encrusted) wreck  within easy access of the resort.