Lembeh Strait is a 12 km. long stretch of water separating Lembeh Island and the mainland. Bitung is actually the half way point along the shores of Lembeh Strait. This pristine section of water in North Sulawesi is home to many unique sea animals which include the pygmy seahorse, mimic octopus, ghost pipefish, as well as other larger species. It is a fantastic dive area for underwater photographers and the diversity of smaller creatures ensures many memorable photo opportunities.
There are several pristine beaches on the shoreline of Lembeh Strait which are excellent for swimming and snorkelling. Presently, Lembeh Island is underdeveloped and has limited tourist facilities.