This is in Volcanoes National Park. They are steam vents that are right on the edge of the Kilauea caldera. The park service has put this railing up to keep people from falling into them but just on a few. The steam comes from rainwater that has made its way down to where the magma heats the rock.

This is in Volcanoes National Park. They are steam vents that are right on the edge of the Kilauea caldera.

This is in Volcanoes National Park. They are steam vents that are right on the edge of the Kilauea caldera.

This is in Volcanoes National Park. They are steam vents that are right on the edge of the Kilauea caldera.

This is in Volcanoes National Park. They are steam vents that are right on the edge of the Kilauea caldera.

Sorry Mom, I had to get off the trail and have a look down the hole my self. Notice the plant life around the hole. The rocks around the hole and the steam itself were way hot.

This is a Metrosideros polymorpha. It is called 'Ohi'a Lehua by the Hawaiians. Meaning twisted by fire.

The steam has condensed on the this 'Ohi'a Lehua.

The steam has condensed on the this 'Ohi'a Lehua.

This is a Metrosideros polymorpha. It is called 'Ohi'a Lehua by the Hawaiians. Meaning twisted by fire.

Telegraphweed

The Kilauea caldera. The smoke is burning lava at the surface.

The Kilauea caldera. The smoke is burning lava at the surface.

The Kilauea caldera. The smoke is burning lava at the surface.

The Kilauea caldera. Steam inside the caldera.

The Kilauea caldera. Steam inside the caldera.

The Kilauea caldera. Park rangers and Vulcanologist right on the edge of the caldera. They are keeping an eye on the volcano and keeping us from going over there.

The Kilauea caldera. The smoke is burning lava at the surface.

Inside the Kilauea caldera. The smoke is burning lava at the surface.

Inside the Kilauea caldera. Steam inside the caldera.

The Kilauea caldera.

Steam from a pressure ridge inside the Kilauea caldera.

The Kilauea caldera. The smoke is burning lava at the surface.