Mount Arjuno – Welirang

3,339m (10,955ft)

There are 3 trail options up this mountain:, all of which will require at least a one-night stop.

Tretes

This trail takes 2 days to complete. It starts at Tretes and takes you through Pondokan and up to Welirang Summit. The overnight rest is at Pondookan and the second day is spent making your way to Arjuno summit and back the way you came via Pondokan to the Tretes trailhead.

Sumber Brantas/Cangar

This trail is useful for anyone wishing to quickly climb either Welirang or Arjuno as it starts pretty high up and leads to a pass between the Kembars. Hikers can then choose to turn left (north) towards Welirang or right (south) towards Arjuno.

Selekta

The range is also accessible from Selekta/Selecta in the south-west near Batu.

Traversing the entire Arjuno-Welirang Mountain range is one of the finest hikes you can enjoy in Java, Indonesia. There’s a range of ecology, volcanology, and history to explore over a number of peaks and craters.

There are 3 trails available, of which Tretes is the most popular. However, due to the substantial climb on this trail, Sumber Brantas/Cangar is slowly growing in popularity amongst climbers.

The main trails are rocky paths. Some of the trails have been damaged by carts that used to carry sulphur down from the deposits in the higher reaches of the mountain. Dusty shortcuts have also been formed by this activity, which can cause confusion as to where the main trail is.

Most tracks up the mountain start off in good condition, but as one gets higher the tracks frequently disappear or turn into a multitude of trails left by animals and lost hikers!

The weather in this part of Indonesia switches between the dry season from May to October, and the rainy season from November to April. This renders May-October the best time of the year to climb. Despite how pleasant the weather may be when starting your trek, climbers must be prepared for remarkable drops in temperature at night, even going below 10°C (50°F).

Make sure to wear proper hiking gear and take hiking poles. Don’t forget to pack camping gear.

Food and water are not available at the trailhead, along the trail or at the summit base camp, except from guides or porters. There is a registration kiosk at the trailhead and some very basic facilities like huts and benches on some parts of the trails.

Guides are required and porters are recommended.

The airport in Surabaya welcomes daily flights from major cities like Jakarta and Bali. There are many transport options from Surabaya and even Malang, including taxis, shared cars, buses, ojeks, and angkots.

As Arjuno-Welirang is a popular hike. There is little chance of being left isolated or stranded. Even so, the hike is best done in a group if you have the option to find fellow travellers to accompany you and guides are required.