Frans W.
Google
Fantastic, what an experience! Worth it? Yes!
After an easy, 45min walk across the foggy lava fields, you arrive at base camp. There you get your helmet, light and security gear and it is a 5 minute walk to the entrance. You descend 120 meter into the magma chamber of a dormant volcano. Spectacular, the cold, the colours, the wet, everything! Tasty soup afterwards.
Hiking shoes recommended, but sneakers will do. Bring multiple layers, a raincoat, sweaters. It is possible to lend water tight jackets on the spot.
You spend 30 minutes on the ground, underground. The whole experience takes 4-5 hours.