I have no experience in fat tire mountain biking and wasn't sure what to expect, but after a 20 mile ride I cannot say enough about this great experience and what an incredible guide Marek was. He was on-time, attentive, explained fun facts about the area, brought food and cold water for replenishment, took photos of me and my friends, and made sure he balanced challenging us, while frequently stopping to ensure we were not overworked. I highly recommend it to anyone looking to explore the outdoors. You will not be disappointed!!