Exhilarating - David was an excellent guide. He knows a tremendous amount about the island and the many stops we made. The tour was more exciting with Kīlauea erupting as we drove by and viewed it from several vantage points. Rainbow falls was amazing and very full sure to recent rains.

Hawaii Geo Tours, the best! - This was by far the best tour we have been on, of the many many tours we have taken all over the world The main reason it was so good was it is Hawaii (the big island) essentially paradise on earth. And the other being Zane Smith, the tour guide. Zane was fantastic. Extremely knowledgeable and experienced. Zane brought the beauty and history of the island to life. His enthusiasm for describing the volcano activity and how the island was started and where it is today made the tour so worthwhile. We highly recommend Geo Tours and Zane.

What an amazing day! - Erik was a great tour guide. We started at Rainbow Waterfalls on our way to the Volcano Park with stops for lunch, a winery and ended with a great dinner. It was a very full day filled with lots of information and ended with a film about the 2018 Volcano eruption on our ride back. I highly recommend this tour. So glad that we were able to do this trip.

Volcanoes - Seeing the Black sand and the turtles. And seeing the shoreline in the volcanic landscape. See the difference between the two sides of the island.

A day in life with David Human - Very informative and fun. David Human - our tour guide - was exceptional. Apart from being very professional and courteous, he knew the Big Island very well and took us to spots that were 'unthinkably brilliant'. Very punctual - picked us up from the hotel on the dot of time and dropped us off at the hotel. David was very sensitive of the diverse needs of all the tour participants. Overall, a day with David on this tour has been fantastic. I encourage everyone who is visiting Big Islands to try this guided tour. You will not be disappointed.

Great tour - Excellent and informative tour. Interesting itinerary with great stops at the national park. Tour guide Dave was very personable and knew so many facts. Highly recommend.

Our guide, David Human,... - Our guide, David Human, was exceptional. Very knowledgable and a great story teller! He made everything very interesting for us.

WOW!!! Hawaii Volcano National Park Like You've Not Experienced! - We had the pleasure of taking a tour today to Hawaii Volcano National Park with Zane Smith, owner and operator of Hawaii Geo tours. We have been to the park many times, as we are frequent visitors of the Big Island, but never on a guided tour and I must say, being with Zane was the MOST WONDERFUL way to visit the park!! We rode in a luxury van, with only 12 participants. Zane was absolutely the best person to be with for this adventure. He was engaging, funny, inclusive and so full of information. The day was very long and included stops that we had not seen previously, including walking in a lava field and going to where the park meets the ocean. He made everyone feel welcome from the start as he shared his expertise as a geologist with the group. Thanks, Zane, for a fantastic tour and thanks for generously sharing your wonderful photos with the group I HIGHLY recommend Hawaii Geo tours for your visit to Volcano National Park. You won't be sorry!!!

Awesome Tour - An incredible tour with our geologist guide, Zane. We’ve been to the Volcanoes National Park before, but Zane and Eric gave us more insight into the history, geology and culture of the Big Island.

Highly recommend this tour - We ere a group of 4, so very enjoyable. David was knowledgeable and knew to entertain us. Lunch is provided, snacks and drinks are available throughout the day. Will do again next time!