In general the tours are well chosen. There are some short and long, difficult and easy ones which are also suitable for children. The thing we didn't like was the lack of description. Although we additionaly had a map we got lost sometimes. Such descriptions like: "after 200m from that point turn sharp left and follow the unmarked path up the steps ..." were confusing. Mostly the length was insufficiently measured and there where lots of unmarked paths to follow ...