I went to Peru last autumn and volunteered in the Wildlife Sanctuary. It was an amazing experience and I met loads of lovely people there. The actual sanctuary was so welcoming and the included us in their work, we could interact with the animals and show the visiting groups of tourists around. It was also so nice to have a volunteer meeting place to hang out at with everyone and the host family was lovely too. I wish I had stayed for longer! Cusco is such a nice city, safe, lots of fun and good night life. I loved it!