You can find the exact same trip locally at less than half of the Viator price. Same bus, same guides, ... However, the Gorge is absolutely worth the visit. The walk is tough, but feasible, even for the not very well trained. Put on good shoes, however. There is a small local bus that runs from the exit of the park to the seaside, which is a good option if you feel you have walked enough as you probably will.
The pick up was right on time. Thomas was very informative on the way to the gorge and after the entire hike. He got us to the gorge earlier than a lot of buses get there so you beat the crowds w this tour. The hike was absolutely gorgeous. A mix of Grand Canyon and Zion national park. Recommend it!
Great walk, early start to stay ahead of crowds and make most of shade. Well organised, the guide Thomas was super, checked in on everyone at all the rest stops and good commentry on the bus. Spring water available all way down so only need one water bottle folks.
Our trip to the Samaria gorge was very nice. We had to get up very very early but it was totally worth it! Our guide Thomas was nice and friendly and could tell us a lot about the gorge and its environment. It was a very long day but this is something you have to do if you're in Crete.