I thought we were going to big cave. Sure, it's a cave, fairly small and steep to get down (old folks might not be able to make it down). The catch is it is refrigerated in the cave (they rent coats) and there are ice carvings to look at. You've seen these carvings before in winter in Quebec or Harbin etc but it's kinda neat viewing them here in summer.

Nothing exceptional if you have visit other cave. But this one is always with ice. The way is a unique way where you have to follow the group and stop if you can for quick photo. It's very cold so you have to rent clothes at the entrance if you don't have. The tour take around 30 minutes, It's nice to visit the underground of a volcano.