Mount Rinjani Summit (3,726 m / 12,224 ft): The Crown of Lombok

Rising dramatically above Lombok Island, Mount Rinjani is Indonesia’s second-highest volcano. Renowned for its massive, awe-inspiring caldera, Rinjani offers an ever-changing landscape—ranging from sweeping savannas and dense rainforests to the emerald-blue waters of Segara Anak Crater Lake nestled 2,000 meters above sea level.

Expedition Highlights:

  • Segara Anak Lake & Mount Barujari: A pristine crater lake housing an active inner cone (Mount Barujari), providing an idyllic basecamp setting.

  • Plawangan Sembalun Crater Rim: The primary high camp featuring panoramic views over the cloud sea and the caldera below.

  • The Summit Push: A challenging midnight ascent over loose volcanic scree ("Letter S" ridge), rewarding climbers with a sunrise view stretching across the ocean to Mount Agung in Bali.

Mount Semeru (3,676 m / 12,060 ft): The Mythical Roof of Java

Standing as the highest peak on Java Island, Mount Semeru (historically known as Mahameru) holds a legendary place in Indonesian mountaineering culture. Located within the Bromo Tengger Semeru National Park, this iconic volcano delivers a classic alpine-volcano trek defined by mystical lakes and periodic, dramatic plume eruptions.

Expedition Highlights:

  • Ranu Kumbolo Lake: A high-altitude lake sitting at 2,400 meters, famous for its golden sunrises framed by rolling green hills.

  • Oro-Oro Ombo Savanna: A vast alpine meadow carpeted with blooming purple flora during peak seasons.

  • Puncak Mahameru Summit: A steep, demanding scramble up loose volcanic ash and scree slopes to reach the roof of Java, where climbers can witness periodic steam-and-ash bursts from the active Jonggring Saloko crater.