Bastianos Bunaken Dive Resort is a PADI dive resort on Liang Beach, Bunaken Island, inside Bunaken National Marine Park. It teaches scuba and freediving and guides daily reef dives.

Its boats reach the island's wall dives, from the Lekuan walls to Fukui Point and Mandolin, where coral faces drop into deep water and green turtles rest on ledges.

Sister operations at Bangka Island and in the Lembeh Strait allow multi destination safaris across North Sulawesi.