
Hawaii Geo Tours
Explore Kilauea Caldera
Learn. Explore. Play.
With personalized attention and insider insights, you’ll gain a deeper appreciation for the Big Island’s unique culture and geography. Explore unique places that are rarely seen by visitors. Our small group tours feature a sit-down lunch and a full day of guided exploration in our Mercedes Sprinter Vans. For those wanting a personalized experience, we offer private VIP tours anywhere on the Big Island. Book Now for a Volcano Adventure on the Big Island!
Discover the Best of the Big Island with Hawaii Geo Tours
Unparalleled Geology, Volcano, and Island Life Insights Await!
As Hawaii-based experts, Hawaii Geo Tours is proud to offer the best tours and activities on the islands. If you’re seeking an unforgettable Big Island adventure, our local guides have you covered. From lava fields and lush rainforests to black sand beaches and breathtaking coastal views, we’ll help you discover the very best of Hawaii Island.
Our volcanic tour is a once-in-a-lifetime opportunity to witness the raw power of nature. Led by experienced local guides, our tours take you on a journey through some of the island’s most remarkable landscapes and natural wonders.

Our Happy Customers Say…
Read what our other guests have said about our guided trips of Hawaii’s Volcanoes National Park.

Tim E
Great food, wine tasting and the locations were amazing.
This tour was the highlight of our trip. Eric and Leilani treated us like royalty. The places we visited were awesome. Great food, wine tasting and the locations were amazing. Eric is a former geologist so we learned a lot of new things. I totally recommend that you book an adventure with them.

Jim C
One of the best tours ever
What an excellent way to get to know the Big Island and learn about its unique place on Earth. Our tour guide Eric picked us up on time at our rented villa along with a number of other visitors and we proceeded to spend one of the better days on a tour of the island. Eric is one of the proprietors of the tour, is a degreed geologist and is truly an engaging and friendly person. The tour was excellent which combined both interesting sights and a tremendous amount of local knowledge about lava flows and local history. To say that this was worth the day spent would be to put it mildly. Even at twice the price, I would happily do this again and recommend the tour to anyone.

S.H.
Best Island Tour!
A must tour experience! Such an incredible day. What is unique about This tour, is how much you learn about the island formation and the flexibility in where he takes you! We traveled with friends and booked the VIP tour…if you can swing it, definitely put Geotours on your itinerary! Erik will not disappoint. You can see that he is passionate about the island and what he does. Mingled well with our group, lots of laughs, great energy and had a BLAST!!!

Kavitha G
As a geologist, his incredible knowledge about the island, natural phenomena and history was like having a documentary rolled into our vacation day.
Eric lead a private tour for family of four in his luxurious and spacious van and gave us one of the most memorable experiences of our travels! As a geologist, his incredible knowledge about the island, natural phenomena and history was like having a documentary rolled into our vacation day. We ate that up, asking him lots of questions and testing his knowledge. He passed with flying colors! When my daughter was confused about the difference between the Caldera and the additional craters, he explained it in multiple different ways until she understood it. Within one action-packed day, we covered almost everything listed on their website as typical top destinations, in addition, we did the hike down to the crater (must see!!!) and Thurston lava tube. He also arranged lunch with a caldera-side view. He was super flexible with our interests and change of plans, very thoughtful and funny, and an excellent driver, including on narrow roads, zero light, and sheets of rain. His van was even stocked with raincoats, if it wasn’t for this, we would not have been able to hike down to the crater. The tours are pricey, but it’s absolutely the best in terms of high-quality education and top notch service. We’ve been sampling private tours around the world over the years, highly recommend.

JaneAnn
This tour ticks off a lot of tourist sights and David does the driving and sprinkles in some interesting facts.
Beautiful day with good people. David was a great fun guide. This tour ticks off a lot of tourist sights and David does the driving and sprinkles in some interesting facts. Thank you, David and Eric

Bogdan
Will do again with them next time in Hawaii big island.
We did the volcano tour and it was enjoyable! Very small group, only 4, which was a plus. David was knowledgeable and he entertained the atmosphere. OK lunch provided . Snake and drinks also available throughout the day. Will do again with them next time in Hawaii big island.

Mary W
Great knowledge of the area and everything about the volcano.
Went on a day tour to volcano with Grant. He had great knowledge of the area and everything about the volcano. It was definitely a 5 star service! One of the best tour I’ve had. Totally worth it.

Sam R
My boyfriend and I have been in Hawaii for over two weeks and done many tours here, but this by far was our favorite one.
DEAR READER- STOP RIGHT NOW! IF YOU ARE ON THE BIG ISLAND- YOU NEED TO TAKE THIS TOUR!!!!! BOOK IT. David was an INCREDIBLE tour guide. My boyfriend and I have been in Hawaii for over two weeks and done many tours here, but this by far was our favorite one. We learned so much. David was so incredibly kind and informative. You could tell he genuinely cares about the volcanos, the island, the people and animals who live here, and the guests on the tour. He took the time to get to know everybody and he was SO GOOD with names and remembering people. He knew amazing details and stories about the island and the volcano and the coffee farm. My boyfriend is absolutely fascinated with volcanos and said it was his “once in a lifetime tour.” It was the perfect amount of guests too. Not too crowded. Amazing stops, each one was worthwhile. And- a very comfortable and clean van. DID YOU BOOK??? DO IT!

Denise F
Tour lasted about 11 hours, excellent lunch.
David was wonderful. Tour lasted about 11 hours, excellent lunch. Plenty of bathroom stops along the way. Highly recommend

Julie T
Excellent tour!
David was a wonderful guide! He was very knowledgeable, courteous and witty. The volcano and its history are so fascinating, as well as the coffee farming. Excellent tour!




