When planning our trip to Yellowstone, I read a glowing review of Lava Creek Adventures and then spoke with Debbie Robinson about our trip. Our decision to hire Lava Creek for a private two day tour was the best decision made and well worth the extra expense. We started our adventure with Debbie , kayaking Hebgen Lake late afternoon for 2-3 hours, a great way to start the trip. Up bright and early (better viewing, fewer people), Debbie picked us up for our tour of the Lower Loop and spent the day with an very enthusiastic guide. She is sooooooo much fun and very knowledgeable. Our second day was again an early rise, by choice, and spent the day with David Robinson touring the Upper Loop. David has a scientific background and was a walking encyclopedia, yet had the knack of explaining things in a very understandable manner. We highly recommend Lava Creek and recommend booking a private tour.