Mount Rinjani National Park: Lombok Travel Guide (4.7★)

What you’re actually climbing

Rinjani tops out at 3,726 metres, Indonesia’s second-highest volcano after Kerinci. The crater holds Segara Anak, a crescent lake with its own smaller cone, Gunung Baru Jari, steaming inside it. Two main gateway villages serve the park: Senaru on the north side, Sembalun on the east. Most multi-day treks link the two, descending through a different landscape than they climbed.

The rim trek to Senaru crater view is a doable two-day trip for reasonably fit hikers with no technical experience. The full summit trek is longer, steeper, and done in the dark for a sunrise arrival, with loose volcanic scree on the final push that turns two steps forward into one step back.

When the gates are actually open

Trekking is officially closed from roughly January through March, Lombok’s wet season, when trails turn to mud and landslide risk shuts routes down. The dry window, April to December, is when almost all guided treks run. Park entry hours are listed as 7am to 7pm daily (7:30pm Mondays), but that governs registration and daytime access, not the summit attempt itself, which leaves camp right at opening, 7am, to catch sunrise from the top.

Peak trekking months are July and August, plus the days around Indonesian public holidays; book guides and porters a few weeks ahead if you’re aiming for that window.

Booking a guide, not a permit

Independent trekking inside the park isn’t allowed. Every hike goes through a registered trekking organizer, who supplies a licensed guide, porters, tents, food, and the park permit as part of the package.

• Compare two or three operators in Senaru or Sembalun village before booking; prices and porter loads vary
• A standard 2D1N package covers Senaru crater rim only; 3D2N or 4D3N packages cross the summit and lake
• Porters carry tents, stoves and food; you carry a daypack with water, layers and a headlamp
• Pack for near-freezing summit temperatures even though Senaru sits in tropical heat

Cash is still the norm for tipping porters and guides at trek’s end; small denominations of Indonesian rupiah are easiest to divide among a crew.

Getting there and what to bring

Senaru is roughly a 2 to 2.5 hour drive from Mataram or the Gili Islands ferry ports; Sembalun is further, closer to 3 hours from Mataram. Most trekking agencies arrange transport as part of the package or as an add-on.

Pack sturdy boots, a warm jacket for the crater rim and summit (temperatures drop close to freezing before dawn), a headlamp, and a reusable water bottle since plastic waste is a real problem on the mountain. Trekking poles help on the volcanic scree near the top. Rinjani is well known well beyond Lombok, so this isn’t an undiscovered trail: expect other groups on the same schedule, especially on the Senaru rim path during peak months.