Best write-up ever. Very funny.
The Lost City is accessible via a challenging but picturesque five-day trek that can be organized in the nearby tourist towns of Santa Marta and Taganga.
Several companies operate tours to the ruins, including the highly-recommended Magic Tour and Turcol. (Incidentally, Edwin Rey, a guide for Turcol, was one of the people kidnapped by the ELN in 2003. He’s the one holding up the sign in the photo below. He’ll be happy to show you newspaper clippings about his improbable escape through the thick forest after only one day in captivity.) …
Your group could contain anywhere from six to twenty-two people; friends are easily made by all but the most awkward. …
Gadling – Ciudad Perdida: The spectacular five-day trek to Colombia’s Lost City
The Lost City is one of the best treks in South America. Check our besthike information page – Lost City.
Very inexpensive.
besthike.com 
Wow! I look forward to hiking there! It looks gorgeous!