What to know about Kazumura Cave, the largest lava tube in the world

Quick links

  • What to know before visiting Kazumura Cave
  • Safety Tips at Kazumura Cave

Located on the Big Island of Hawaii, Kazumura Cave begins in Hawaii Volcanoes National Park and descends into the Kilauea Valley. As one of the most geological sights in the world, the cave attracts scientific minds and students eager to learn more about Hawaii’s volcanoes with lava pools, original lava falls, and stunning stalactites. .

The lava tubes stretch up to 40.7 miles, which arouses the curiosity of history buffs and experienced cavers. Here’s everything a tourist needs to know before hiking this lava-molded geographic wonder.

THE TRIP VIDEO OF THE DAY

About Kazumura Cave

Related: The Best Time to Visit Hawaii Based on What You Want to Experience

Besides being the largest lava tube in the world, the newly discovered Kazumura Cave also has rich cultural and geographical significance. The dream of every geology enthusiast is to discover the next unique phenomenon on the surface of the Earth. In 1993, Kevin Allred and Mike Meyer fascinated the world when they discovered a hole connecting the two caves, later known as the longest continuous lava tube to date. Since then, Kazumura Cave has become a tourist attraction with many adventure-worthy underground sections.


The complex cave features numerous lava falls and overlying tubes that tell the story of the multi-stage development of volcanic activity. The structures are impressive and tourists are allowed to take photos of the lava blades, lava pools and hanging stalactites. Additionally, these caves and tubes are home to species adapted to live in the dark, namely spiders and a variety of moth species.

Tours are led by enthusiast Harry Schick, who runs Kazumura Cave Tours. The three adventures available include The Lava Falls, The Pit Room, and The Maze Room. Tours are quite technical and can last anywhere from one to eight hours. But four hours of discovery is the recommended duration.


  • Business hours : 8:00 a.m. to 6:00 p.m., Monday to Saturday
  • Cost of visit: From $50 per person

Related: What we know about the new area of ​​Hawaii Volcanoes National Park

What to know before visiting Kazumura Cave

Kazumura Cave is a must-see destination in Hawaii. So, for tourists planning a trip to this unique Big Island destination, here is some vital information to consider before visiting.

The cave is not for everyone

A visit to Kazumura Cave is also an intriguing lesson in geology, making it a paradise for curious travelers. The minimum age for visitors is 11 years old. This age limit is based on safety, as visiting Kazumura Cave involves walking on loose, rocky terrain and climbing ladders.


For a less stressful trip, tourists who are claustrophobic or afraid of underground and enclosed spaces should let the guide know before the tour. Some interior parts of the cave are deep and dark, requiring tourists to use ladders and ropes to climb down and down while navigating. Therefore, visitors who are afraid of heights should avoid the tour or take a vertical training course one month before the trip.

Tour Information

Tours of Kazumura Cave offer a striking insight into volcanic development. Here are three categories of tours.

  • Visiting the lava falls: The tour ranges from easy to moderate, depending on experience. The walk provides an inviting introduction to the cave, showcasing delicate gypsum crystals.


  • The pit room. The 25-by-35-foot hole in the floor of the cave is the next stop on the tour. During this walk, tourists can see ceilings decorated with lava while the friendly guide narrates the details of their formation. The century-old destination is safe to walk around and home to intricate features that are almost impossible to believe are made of rock.
  • The Labyrinth Tour. This section is suitable for experienced cavers. The adventurous tour descends to the Sexton Maze and Eureka Falls. The highlight of the trip is the series of incline points that each tourist in the group must descend. First is the 10-foot drop at Mongoose Falls, followed by Eureka Falls, a 37-foot straight drop. Finally, a 30-foot drop with a double rope awaits any avid caver who has made it all the way.

Safety Tips at Kazumura Cave

For first-timers to Kazumura Cave, the experience can be overwhelming. Despite the fun and adventure, understanding the rules of the cave is key to avoiding injury or other accidents. Here are some safety tips tourists should keep in mind when exploring Kazumura Cave.

  • Visits to Kazumura Cave are available by reservation only. Therefore, it is recommended to book in advance and the best way to make the reservation is by phone.
  • Visitors are required to wear long pants, closed shoes, and knee and elbow pads. However, gloves, flashlights and helmets are provided at Kazumura Cave.
  • Children are not allowed on the maze tour.
  • It is forbidden to eat inside the cave. This is a conservation measure in the cave environment, as food droppings can attract bacteria and fungi that can harm cave creatures.
  • The atmosphere in the cave is humid and the water droplets in some sections of the cave intensify during the rainy season. Therefore, it is recommended to wear a heavy jacket.

Kazamura Cave is one of the Big Island’s most spectacular features. The destination is excellent for visitors who want to learn about ancient Hawaiian history while being adventurous. With proper research and planning, first-hand experience with these tubes is enough for any tourist to appreciate how the earth moves and changes shape over time.

Comments are closed.