Rosalba's place is great for those who are planning to go see Selinunte on their own without a car, as Castelvetrano is a gateway to Selinunte, easily accessible from Palermo or Trapani. I arrived there a day before and went to the Archeological Park first thing in the morning before it is too hot to walk (in August). Castelvetrano is a very small town, and there are not many things to see, but the historic center is pretty and Chiesa San Domenico should be a must as it is supposed to be the Sistine Chapel of Sicily.