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!

Looking down into the... - Looking down into the volcano charter. Dave was an absolutely superb guide who made the whole day come alive.

Warm, friendly tour guide who gave us a detailed and enjoyable experience of the big island. - It was a wonderful tour. David, our tour operator, was extremely knowledgable, and knew exactly what information would be the most interesting and fascinating for us. Within 11 hours, we covered most of the big island, and it never felt exhausting. Additonally, David created a lovely atmosphere in the group, where we got along really well, and ended up going for other activities too with people we met in this group. I will highly recommend this tour, especially if you are visiting the big island for the first time.

AWESOME TOUR! - Don't think twice, book this tour! David was amazing and very knowledgeable about the island. It’s an incredible experience and would definitely do it again if given the chance. It’s a long day but there’s so much to see and experience.

Excellent trip to Hawaii Volcano National Park - David was an excellent guide to our trip to the Hawaii Volcano National Park. He was extremely knowledgeable about everything to do with lava, rocks and how the area formed. I highly recommend this small group tour.