Walk the suspension bridge between Nusa Lembongan and Nusa Ceningan.
Visit the Lembongan Village seaweed farms; the view across the estuary is spectacular. Birdwatchers should look out for flashes of turquoise and white; these are the sacred kingfishers, similar to the collared kingfisher but slightly smaller, and common to this island.
Snorkel at Crystal Bay; the coral here is a must-see and largely untouched.
Watch the legendary Lembongan sunsets above the crashing waves.
Visit the bizarre ‘Rumah di Bawah Tanah’, an Underground House that was built back in the 1960s by a local priest acting upon divine inspiration. The house has a living room, bedrooms and kitchen, with walls, tunnels, nooks and crannies carved out of natural limestone, but no one actually lives here.
Pura Puncak Sari is the biggest temple on the island, positioned on a hill; the views looking across to Bali are breathtaking.
Rent a motorcycle
Take a tour through the mangroves in a sampan-style boat.