Volcanic Steam Vents


About Volcanic Steam Vents


Feel the steam from underground freshwater reservoirs as they rise to the surface! As waters below climb upward for miles beneath the surface, volcanic activity heats the water molecules and releases steam at the Earths surface. Another method for creating steam at these Volcanic Steam Vents occurs when rainwater seeps underground and is warmed by rocks heated from the lava below. The heated water then rises upward through fissures and condenses when it hits the cool air.


These volcanic steam vents have been here since Hawaii Volcanoes National Park first opened in 1916.

Facts & Trivia

  • Island: Big Island
  • Duration: 10-15 minute stop when time permits.
  • Insider Tip: People with breathing conditions and asthma are advised to stay away from the vents, as some gasses may interfere with their health.
  • Fun Fact: Hawaii Volcanoes National Park gets over 100 inches of rainfall per year.
  • What to Expect: Hawaii Volcanoes National Park lookouts and Mt. Kilauea