Bend Lava Tube Cave Tour: Wild Underground Passages

Underground through volcanic passages with a naturalist guide

A guided lava tube cave tour in Bend takes you three hours underground through wild cave passages formed by ancient volcanic activity, with a naturalist guide, helmet and headlamp included. The cave has no paved path or lighting, uneven rocky terrain, and stays at 45 degrees Fahrenheit year-round. Wear closed-toe hiking boots, a fleece jacket and jeans. Children 5 and older are welcome.

The experience

Wanderlust Tours is the only guide company permitted in these lava caves, and the tour moves through Oregon's longest known lava tube system. Your naturalist guide explains the geology as you navigate uneven terrain, step over rock features and move through passages that were carved thousands of years ago by volcanic activity. The cave is entirely wild (no paved paths, no installed lighting), so the guide's knowledge of the formation and the landscape becomes the real difference between wandering and understanding what you're standing inside.

You'll wear a helmet and headlamp throughout, and the guide will help you read the rock formations and volcanic history as you move. The cave stays at 45 degrees Fahrenheit year-round, so bring a fleece jacket and jeans or thick pants. Closed-toe hiking boots or sturdy running shoes are essential for the uneven walking surfaces. Expect to get dusty. The tour is described as easy to moderate difficulty, though it does involve scrambling over rocks and moving across uneven ground, so contact the operator directly if you have questions about what the terrain demands.

Plan for three hours underground plus time to fill out a waiver at the office before departure. Bring water and a snack if you want one. Guide gratuities are not included in the tour price.

What’s included

• Helmet and headlamp for each guest.
• naturalist guide and geological interpretation throughout the three-hour tour underground.

Before you book

Days and timesNext departure: 1 Jun 2027

Book up to2d before

AgesAdult (12 and older) · Youth (2 to 11 years)

GroupUp to 12

Live guideEnglish

Meeting point and pickupNo hotel pickup: you go to the meeting point. Ends back at the starting point.

Cancellation and refundsNo refund if you cancel.It may be canceled if the minimum number of travelers isn't reached. If that happens, you're offered another date or a refund.

Prices and times updated yesterday

Good to know

Low physical effortNot recommended during pregnancy

Operated by Wanderlust Tours

Is this one for you?Three hours underground means you'll need the morning or afternoon free, but the tour fits into a single half-day and leaves room for other Bend activities before or after. If you're uncomfortable with uneven terrain, scrambling over rocks or walking in genuine darkness lit only by your headlamp, contact the operator to discuss whether the cave's difficulty suits you.

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Top questions

Can children come?

Yes. Ticket types: Youth (2 to 11 years).

What is the longest known lava tube cave in Oregon like to walk through?

Oregon's longest known lava tube cave has uneven, rocky terrain with rock features you'll step over and scramble across. There are no paved paths or installed lighting inside (your headlamp is your only light source), so the cave is genuinely wild and requires careful footing, but the naturalist guide interprets the volcanic geology as you move through the passages.

How cold does it get inside the cave, and what should I wear?

The cave stays at 45 degrees Fahrenheit year-round, so bring a fleece jacket and jeans or thick pants to stay warm. Closed-toe hiking boots or sturdy running shoes are a must for the uneven surfaces, and expect to get dusty during the three hours you spend underground.

What does Wanderlust Tours provide, and what do I need to bring?

The tour includes a helmet and headlamp for each guest, plus a naturalist guide who explains the geology throughout. Bring closed-toe hiking boots or sturdy running shoes, a fleece jacket and jeans or pants, and water. You're welcome to bring a snack as well. All guests fill out a waiver before the tour starts, which you can complete on your cell phone in the office.