Crees runs ‘voluntourism’ one-week trips into the zona reservada. These depart every fortnight April to December: participants can help with projects such as reforestation and jaguar monitoring, while at the same time getting to see parts of the jungle the tourist otherwise couldn’t reach. Book online or at the Cuzco office.

If one week isn’t enough for you, it also runs long-term volunteer projects (up to 16 weeks) where you'll be directly helping communities in and around Manu – based at their Manu Learning Centre.