Nusa Lembongan and neighbouring islands of Nusa Penida and Nusa Ceningan all offer world class dive sites. There is an abundance of marine life, drop off walls, coral beds, drift dives and you will also encounter manta rays and the unique mola-mola (ocean sunfish).
Non-divers should not feel left out as there is also great snorkelling. Popular spots include Crystal and Gamat Bays. Be mindful that there are strong currents along all coastlines and caution must be taken.