Lembeh Strait Diving Resort with guaranteed 2:1 Guest to Guide Ratio! Premium Diving in the Lembeh Strait. 2:1 guest to guide ratio as standard, with photography trained guides. Come try the best muck diving in Indonesia. NAD-Lembeh Resort is a small, owner-operated, photography-oriented dive resort in the Lembeh Strait. We are situated in a private bay on Lembeh Island, away from the hustle and bustle of the mainland. We guarantee a 2:1 guest to guide ratio as standard, which makes for a private dive experience!