From July 15-18 this small town gets reinvented with 100s of people rying to honor the Virgin del Carmen, matron saint of the town. Dances, parades, games, fireworks, even a war is staged to simbolized legend after legend about how the Virgin ended up in Paucartambo and not in Puno as its was destined...
Definitely the thing to do here is go up to 3 cruces and watch the sunrise. From May till August the opticall illusions of a magnificent sunrise can be seen (with some luck, it could be cloudy one day and not be able to see anything, so plan for more than one day to go up the mountain) The main day is the day of the solsctice, around june 20th, changes every year...
The mountain finishes at the foot of the rainforest (Manu National Park) and the cloud forest, its like flying with the sun sitting on the seat in front of you....
If while its true the specialty of the town is lechon (pork) there is an actual order for food during Mamacha Carmen's Festival:
1st day: Merienda. dont miss this concoction of cuy, hen, noodles and rice as you wont find it any other day
2nd day: lechon. Piglets are cooked in a stone oven and sold all thru out town
3rd day: asado. mmmm, pork cooked stew like, very soupy.
Also, dont forget the bread which is made with butter, quite different from the chuta bread served every where else in Cuzco
Everyone of the dancing groups in Paucartambo has a place to practice and these are where the main entertainment takes place. Just follow one of these groups as it leaves the square and enjoy the warmth welcome they will give you!!!
It will take about 3 hours to get here, so plan accordingly
The bus can be taken at Diagonal Huascar at leaves every day at 0730 and 1330 (2008). Also, during the festivals cars go out all day, almost one every hour, and from other locations around Cuzco as well. For updated info about these other bus stops, ask a local taxi dirver (Im serious, they have the most updated info, more than INC)