Ethiopian Christmas in Lalibela. Christmas is highly celebrated in Lalibela on the 7th of January. Www.addisethiopiatours.co.com
The churches alone are world famous and worth the trip. There is little else in the town. Weather in nice and I agree, a good guide is a must. Hotel quality is better if you choose carefully
The monolith churches are pretty incredible and the artwork inside is quite unusual. While it's pretty cool just to wander the grounds, a guide is extremely beneficial. The town of Lalibela has little else save for a weekly market that yields some interesting photo opportunities.
It is 12centry orthodox church cite and registered as one of tourist attracting place.