Andahuaylas is a small Andean town, situated deep in the mountains between Ayacucho and Cusco. I only stopped here for about half an hour, as it was the midpoint of my 24-hour Ayacucho-to-Cusco bus trip. Very scenic area — the town is in a massive valley, with towering mountains all around — but not much to do here, and whatever you can do here, I didn't stay long enough to see it.
This was the longest bus journey that I've undertaken so far on my trip. It was about 24 hours in total: I left Ayacucho at about 7pm last night; we stopped and changed buses this morning at Andahuaylas; and I finally arrived in Cusco at about 7pm this evening. The ride was tedious through the night, and not overly comfortable the whole way; but the Andean highland scenery during the day was spectacular and intriguing, and it made the whole trip worthwhile.