About Us
From Volcanoes National Park and black sand beaches to lush rainforests and scenic coastal drives, we provide unforgettable experiences that help visitors discover the very best of the Big Island.
Embark on an extraordinary journey with Hawaii Geo Tours and experience the raw power of nature through our volcanic tour. Our tours offer a comfortable and personalized way to explore Hawaii Island with knowledgeable local guides who share the stories, culture, and unique landscapes that make this island so special. With over 4,000 square miles of stunning landscapes to explore, from arid lava fields to massive volcanic formations, pristine beaches to tropical rainforests, and rolling green hills, you’ll be amazed by the breathtaking sights on this Pacific paradise. Our exclusive day tour guarantees you’ll get up close and personal with everything that makes the Big Island truly special, and uniquely Hawaiian. Don’t settle for anything less than an unforgettable adventure with Hawaii Geo Tours.
Erik
Erik has spent much of his career exploring the outdoors and working throughout the world before making Hawaii home. His passion for adventure, travel, and sharing the island’s incredible landscapes inspired him to help create Hawaii Geo Tours. Erik enjoys helping visitors experience the beauty, history, and unique character of the Big Island through unforgettable day-long adventures.
David
David joined Hawaii Geo Tours in 2022 and brings years of guiding experience from both Hawaii and Rocky Mountain National Park. Having lived and worked across several continents, David loves sharing the stories, history, wildlife, and natural beauty that make Hawaii so special. His goal is to ensure every guest leaves with lasting memories of their time on the Big Island.
Grant
Grant Mitchell is a 50-year Hawaii resident originally from Southern California. A Hilo High School and UH Hilo alumnus, he has worked as an adventure guide on the Big Island since 1991, sharing its beauty and adventures with visitors from around the world.
He enjoys motorsports (F1, SuperMotocross, hard enduro), woodworking, automotive projects, coin collecting, and island life in Hawaii.
Kawika
Born and raised on the Big Island of Hawaii Kawika has an intense love of history and the natural word. His childhood was spent in the lava fields of Mauna Loa and the summit of Kīlauea. When not doing tours, he can be found bodysurfing the beaches or enjoying lava fountains. Kawika has a passion for being able to show others and allow then to experience the same sense of awe and wonder that makes life on the Big Island so unique.
With exclusive access to unparalleled insight and knowledge, our private tours are designed to showcase the island’s most breathtaking sights and hidden gems, leaving you with memories to last a lifetime.
Book Your Tour Today
Check Availability
Victoria P
We had an amazing experience with Hawaii Geo Tours!
We had an amazing experience with Hawaii Geo Tours! Our guide, David, was incredibly knowledgeable, professional, and friendly—you can truly tell he loves what he does. He’s a wealth of information, and even though the tour is long (about 11 hours from pickup to drop-off), everything ran smoothly and was very well organized. David picked us up right from our hotel, and we got to see so much of the Big Island: a local coffee farm, a stunning black sand beach, a delicious lunch at the famous Volcano House, walking through lava tubes, and down to the coast where the road ends due to lava flow. We also stopped at the Big Island Candy Company and finished the day at beautiful Rainbow Falls. It’s a long day, but the trade off was not feeling rushed. Our group included one boy 6 years old who was naturally antsy but thankfully well behaved, so families with young children should consider the long stretches in the van. That said, it was still a wonderful experience. This tour is a must-do if you’re new to the Big Island. It’s an excellent way to see a wide variety of highlights while learning about the island from a true expert.
Nathaniel M
We enjoyed our lunch at The Rim restaurant at the Volcano House Hotel in Volcanoes National Park (overlooking the Kīlauea crater).
My wife and I took the tour and had a great time! The tour van—which was in excellent condition and had big windows—arrived on time. The tour was well-organized and had a great set of stops. David gave great explanations of everything we were seeing. We had plenty of time at each stop and never felt rushed. We enjoyed our lunch at The Rim restaurant at the Volcano House Hotel in Volcanoes National Park (overlooking the Kīlauea crater). David had earlier given us a number of choices off the menu which he called into the restaurant so our food was ready shortly after we sat down. The cost of the lunch is included in the tour fee. We were lucky that there was visible activity at Kīlauea while we were there. Even during the current period of activity (since 12/2024), not nearly every day has flowing lava like we saw today. The view would still have been pretty great even without that though.
Nichole T
GEO TOURS was easy to work with, exceptionally attentive response time to communication all questions prior to our trip.
GEO TOURS was easy to work with, exceptionally attentive response time to communication all questions prior to our trip. The cost of ANY tour and ALL tours are high in Hawaii- but for what you receive on this trip I felt that they were priced correctly in their marketplace. We stopped at interesting locations along the way: All of the ones they indicated and nothing felt like a big sales pitch anywhere which was great. If you are traveling with children be aware this is a LONG all day tour. If you're a car-sick kinda person like me - come prepared! I hate being loopy, but that's what I sacrifice to be with our whole group. Take your Bonine people! Our tour guide for our party of nine was Dave. Great guy! Knowledge, kind, engaging and obviously done this sort of thing a lot. I was a bit bummed we didn't get one of the actual geologists (as we were traveling with my brother who IS a geologist and when booking with Erik I mistakening thought he would be our tour guide that day. I knew it wasn't a private tour, and now I kind of wish I would have booked a private tour. We were so fortunate that the family we traveled with had delightful children and easy to combine our group with. What I realize in hindsight, is that it would be worth paying the price for private and having a little more wiggle room for our personal group. We were four adults and five siblings; 20,17,15,11,9. Dave on his own as a travel guide and driver was helpful, efficient, a gracious island host and very easy to be around. He didn't make up anything and was not grandiose; as some guides tend to be know-it-all-junkies. THANKS Dave for your kindness to our whole family. Thank you GEO Tours. The family voted you as their favorite vacation activity.
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
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.
Sherry M
I would highly recommend this experience!
Our tour guide David was so knowledgeable. He really went above and beyond brought the group together. I would highly recommend this experience! This tour included so much.
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!!!
Isaac O
Fantastic Tour
Amazing tour! Our guide Dave was absolutely fantastic, very knowledgeable and funny, kept everyone entertained over the trip.
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!
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.