Island-hop the Gilis. Gili Trawangan, Gili Air and Gili Meno are tiny, car-free islands ringed by white sand and reef. Snorkeling with sea turtles off Gili Meno is nearly guaranteed; day trips with stops at all three, including boat and gear, cost around Rp 450,000-750,000 ($25-$40). Bicycles and horse carts are the only transport.
Base yourself in Kuta, Lombok. (Not Bali's Kuta.) The south-coast town fronts a string of gorgeous bays — Tanjung Aan's twin white crescents, Selong Belanak's beginner-friendly surf, Mawun's quiet cove. Rent a scooter or hire a driver and beach-hop; surf lessons run about Rp 350,000-500,000 ($20-$28).
Chase the Benang Stokel and Tiu Kelep waterfalls. The jungle falls on Rinjani's slopes are Lombok's best half-day inland — Tiu Kelep's multi-stream curtain near Senaru is the showpiece, a wet 45-minute walk from the road.
Take on Mount Rinjani — or just its viewpoints. Indonesia's second-highest volcano offers a legendary 2-3 day trek around a crater lake. If that is too much, sunrise hill viewpoints at Sembalun give the postcard without the climb.
Also worth an hour: Sade village, a traditional Sasak settlement, and the southern viewpoint at Merese Hill for sunset over Tanjung Aan.