Our tour guide David was excellent, very knowledgeable and entertaining. However the tour was 12 hours long, which is too long especially with children. As we were a family of four, we had the last four seats in the bus, which were very uncomfortable. My back hasn’t stopped hurting since the trip. I think a couple of the stops could be skipped (coffee farm, one of the two waterfall stops) which would make the tour more manageable. Alternatively, a more comfortable, spacious bus would make all the difference.