The valley has increasingly taken on a dual personality, depending on the time of day, day of the week, and month of the year. Blame it on Pisac and its famous three-times-weekly market. Every Cusco travel agency offers a day tour of the Sacred Valley each Tuesday, Thursday, and Sunday to coincide with the town's market days, and they all seem to follow the same schedule: morning shopping in Pisac, buffet lunch in Urubamba, afternoon browsing in Ollantaytambo. You can almost always sign up for one of these tours at the last minute—even early on the morning of the tour—especially if you're here in the September-to-May off-season. On nonmarket days and during the off-season, however, Pisac and the rest of the Sacred Valley is a relatively quiet. In any case, the valley deserves more than a rushed day tour if you have the time.