Addicted to Travel ( 020 8144 0965 , addictedtotravel.com ) has a truly sinful alternative , walking by day and staying in a selection of splendid ( and luxurious ) hotels each night , from a five-star 16th-century monastery in Leon , via an 18th-century nobleman 's home in Pazo de Andeade , to the outstanding 15th-century Parador Reyes Catolicos , in Santiago itself .