Gunung Rinjani lies within the Rinjani National Park and contains within its borders all the fascinating flora and fauna one would hope to find in a transition zone right on the Wallace Line.

The still active cone of Mount Batur is a relatively young and small volcano located in a middle of the huge crater of its grander ancestor: diameter around 14km.

Gunung Agung is a symmetrical stratovolcano. It is Bali'shighest and most sacred mountain and towers over the eastern end of the island. The volcano, whose name means "Paramount," rises above the caldera

The 11 x 6 km wide Bratan caldera in north-central Bali is actually a complex of peaks and contains three caldera lakes. Several post-caldera stratovolcanoes straddle its southern rim; the largest post-caldera cone

The active Batur volcano is located at the center of two concentric calderas NW of Agung volcano. The outer 10 x 13.5 km wide caldera was formed during an eruption