Our tour guide, Justin, was amazing. His deep knowledge of the area, from history to chemistry, was exhaustive. His delivery is clear and easy to understand. He made the trip fun as well as informative. Lunch was excellent--wraps filled with caesar or Chinese chicken salad (and as much as you want), along with water, lemonade and fruit. The wraps were made fresh at the picnic site. He was also an expert driver and navigated the challenging parts of the trail with ease.
Be sure to confirm your reservation with Nav-eTc a few days before your trip.