All the excursions that Amazonas organised were very good. We enjoyed the Kayaking despite the weather not being great that day. It was incredibly well organised and the guide who did that with us was fantastic. they cooked an excellent lunch cooked by the lake which was great. The salt mine was well worth a visit and was fascinating. All the hikes were a great success particularly the one ending up in Ollantaytambo at an amazing organic farm/distillery/restaurant called El Albergue where we had a traditionally cooked meal, a Pachamanca. It was a spectacular day, possibly our best.
The hike to the Sun Gate was a great success though we found it quite tough despite the fact that we are reasonably fit and had done several hikes at altitude in the preceding days. It was a great way to see the ruins but we were absolutely shattered at the end. Our guide was excellent both at explaining the local flora and fauna but also pacing us and coaching us when we were getting tired. It took us 5 hours. There were very few people on it until we got very close to Machu Picchu and we were really glad we had done it. It was a good recommendation.