The highest peak on either Bali or Lombok is Gunung Rinjani (3,726m/12,224ft), a smouldering cone of volcanic rock and sand with a huge, blue-green lake in its summit caldera. You can trek to the rim in 6–7 hours for a peek inside the vast, lunar-like crater, or camp just below in order to catch the sunrise. Confirmed trekkers may also wish to tackle the full, 3-day ascent of the summit itself, which involves two nights under canvas and is regarded as among the finest mountain ascents in Southeast Asia.

We can arrange experienced guides, tents, supplies and porters for the expedition. Just bring suitable all-terrain footwear, mountain clothing, and a camera to capture the stupendous panoramas, which extend across the steaming, younger volcano inside the caldera and out across the Straits to Gunung Agung in Bali.