Mount Batok, Volcanic mountain in Bromo Tengger Semeru National Park, Indonesia

Mount Batok is an inactive volcanic cone rising to about 2,440 meters in the Bromo Tengger Semeru National Park, shaped like a perfect coconut shell by layers of ash and rock. The summit sits in a highland area where four different regencies meet, offering views across the crater landscape below.

Mount Batok is an inactive cinder cone in the Tengger caldera, west of the active Mount Bromo and beside Mount Kursi and Mount Widodaren. The Tenggerese account for its origin in legend rather than geology: they say the giant Resi Bima kicked a coconut shell after failing the conditions set by Rara Anteng, and the shell became the mountain.

In Javanese, batok means "coconut shell". The Tenggerese hold that the cone was formed from a coconut shell kicked by Resi Bima, a powerful giant, after he failed the conditions Rara Anteng set for marrying her. The mountain stands in the old Tengger caldera beside the active Bromo cone, Gunung Kursi and Gunung Widodaren.

The hike from Cemoro Lawang takes roughly two hours, and starting early in the morning gives you clear views and quieter paths. Bring water and wear layers since the altitude can be cool, and the marked trail is straightforward to follow even though the ground can be uneven underfoot.

This inactive cone keeps its perfect coconut shell shape because it stopped erupting long ago, unlike other active volcanoes nearby that change over time. Its location sits exactly where four different regencies meet, making it a geographical meeting point that many visitors overlook.