I really enjoyed the excursions with tour operator Oksana. I found a place using Google maps, before that I watched excursions in other places. This place has the cheapest excursions. Plus, Oksana takes great care of her clients, went on 3 excursions, each time Oksana paid me and her other clients for a taxi to the collection point, bought water. Once there was a conflict situation with the guide, which was resolved after Oksana's call.