The vast and remote Peruvian region of Manú is a place of extraordinary biodiversity and home to some of the world’s last uncontacted tribes, but the national park and World Heritage Site is threatened by logging, mining and road-building. Determined to assist the area he first visited as a 23-year-old social anthropology graduate, Quinn Meyer launched the charity Crees in 2003, which aids the local community and environment. Profits from their new educational rainforest tours – from three to 10 days – all go to the charity. A yoga tour (from $1,800) runs from the Andes to the Amazon with a naturalist guide and monastery stays; expert-led wildlife trips (from $3,500) include a night at the biological station where travellers can join in with research. Crees also creates bespoke itineraries to include bird watching, rafting, mountain biking and monitoring mammals from woolly monkeys to jaguars.