Kawah Ijen

The blue fire of Kawah Ijen, Indonesia

Turquoise-colored, extremely acid lake with a diameter of 1 km. Acidity – 0.5 pH. Nearly pure deposits of sulfur are located in the caldera. The burning sulfuric gas creates a very impressive blue flame in the night.

Yogoluk Sinkhole

Up to 240 m deep and 180 m wide sinkhole with vertical walls, formed over underground river.

Wonders of Indonesia

Kelimutu crater lakes, Flores

Wondermondo 🢖 World 🢖 Wonders of Asia 🢖 Wonders of Indonesia Territory Wonders of Indonesia   Highlights Indonesia is a true land of wonders. There are few other countries in the world that can offer a similar array of diverse, unique, and beautiful natural and cultural monuments. Some truly surprising wonders of Indonesia are: Volcanoes and geothermal phenomena – volcanos are calamity […]