Most people visit Pisac to see the market on Sunday, but there are smaller markets on both Tuesday and Thursday. However Pisac is a pretty village and has plenty of small handicraft shops and is worth a visit on any day of the week. There are local buses departing from Cusco every 15 minutes for the one hour ride to Pisac village. Local buses cost about US$1 each way. A taxi can be hired for about US$10 each way. There is no public transport up to the ruins. You can either hike up, starting from the plaza (allow two hours round trip). Alternatively you can negotiate with a local taxi driver to take you there (about 20 minutes following a long winding road) and either return by taxi or walk down hill to the plaza. (A local taxi costs approximately US$5 each way)