Just got home and catching up on the posts I missed, had so many photos to upload I didn't want to waste my travelling time doing it.
Ciudad Perdida (The Lost City) is an ancient ruin of the Tayrona people in the Sierra Nevada. I went on a 4 day trek through the jungle clad mountains to the lost city and back. We had a great group of about 20 people who all got along well by the end of the week and we also had great guides looking after us and feeding us very well. The trek wasn't easy as there were a lot of steep uphill and downhill sections but it was worth it for the amazing views along the way as you will in the pictures. The lost city itself was well worth all the trekking too.