With 7 teenagers and 6 adults, we had a once in a lifetime experience! Our guide was extremely knowledgeable, flexible and most importantly patient! We had the opportunity to take amazing photos, share lots of laughs, and capture breathtaking views! We saw Grizzly, Black Bear with cubs, Prongs, Elk, and Bison. Touting Old Faithful, viewing the hot springs, waterfalls, Yellowstone Lake, and so much more. Derek with his local knowledge gave us the ability to tour all types of different places through out Yellowstone. Hands down best tour I have ever taken! The facts and information shared was academically fascinating and balanced with lots of laughs! We created family memories and will leave a piece of our heart here! Thank you Derek!