The number of mountain gorillas in Rwanda is now in a far healthier state thanks to companies like Rwanda Eco Tours, which has convinced local communities that these magnificent animals are worth more alive than dead. Co-run by local Rwandan, Edwin Sabuhoro, the company runs guided treks to see the gorillas in the heart of the Parc National des Volcans. Tours range from a one-day hike from the base of the Virunga Mountains to a six-day tour that includes a visit to the Dian Fossey Research Station where you can learn about the programme's Mountain Gorilla Conservation work.
Presented on the "Guardian Green Travel List 2010 - http://www.greentraveller.co.uk/content/green-travel-list-full-0