Hidden below a massive sea of jagged lava rock is a 1,000 foot long lava tube with ice up to 30 feet thick. Even in the heat of summer, the ice remains permanently frozen, maintaining a temperature between 24 to 32 degrees year-round. Currently it is the largest volcanic cave in the world open to the public.

Things To Know

  • Bring a light jacket as the caves will remain below freezing no matter the temperature on the surface.
  • Propane lanterns will be provided.
  • Guests are encouraged to bring flashlights.
  • Self-guided tours take about a half hour to complete.