Tierradentro is in the department of Cauca in Colombia. The Tierradentro Archeological Park is famous for its painted underground burial chambers, a UNESCO World Heritage site.
The subterranean tombs were created around 700 AD and rediscovered and excavated between 1930 and 1995. Most tombs had been damaged and looted by grave robbers but the level of preservation of the actual structures is impressive. These tombs provide a unique opportunity to study an ancient pre-Columbian civilization, and for this reason the Tierradentro Archeological Park has earned its place on the UNESCO World Heritage List.
Not much is known about the pre-Colombian civilization who created the burial chambers.
San Andres de Pisimbala or simply San Andres is the tiny hamlet where most people stay.
All sites are within walking distance. It's possible to visit all of them in one long day starting at the archaeological park, 2.57027°, -76.03615°. then hiking to Segovia, 2.57368°, -76.03299°. , El Duende, 2.57609°, -76.02833°. and El Tablon, 2.5822°, -76.0398°. before having lunch at San Andres, and finally visiting Alto de San Andres, 2.5772°, -76.0446°. and Aguacate, 2.5673°, -76.0491°. in the afternoon. This 14-km loop takes between 8 and 9 hours, so start early.
Near the entrance of the park there are two museums. An archaeological museum with pottery, statues and interesting information (in Spanish) and an ethnological museum with interesting information about the Paez Indians who nowadays live in the surrounding mountains.
From the entrance there are two walks. One will lead to Segovia a extensive site with the best preserved burial chambers and the only ones with light. Further up is the site El Duende with some more burial chambers. And close to San Andres is El Tablon with statues similar to the ones in San Agustín.
The other walk will lead to Aguacate sitting on top of a mountain. The views are amazing, but most of the burial chambers are not maintained at all. Close to San Andres is the site Alto de San Andres.
There is no bank nor cashpoint. Take enough money especially in small bills, changing your COP$20,000 bills can be hard.
Bring a torch before going to Tierradentro. The ones available in San Andres are bad.
In San Andres there is only one restaurant, you can't miss it.
There are several budget residentials renting out rooms and cooking meals. One of them is an old lady called Marta which has rooms for COP$8,000 and a meal cost around COP$2,000.
Tierradentro is a guerrilla area, but up till now they haven't harmed any tourists. Armed conflicts between guerrilla and military aren't uncommon, so inform yourself of the situation before setting off.
There is a 6AM bus to Popayan (4 hours, COP$20,000). Otherwise, catch one from El Cruz.