If the prospect of a week on the beach or lazing by your villa pool is still not enough to tempt your teenage offspring away with you this summer, they may be interested in our new collection of adventure activities. Body-rafting, river trekking, and, for younger children, canyoning or a family jeep tour, are all guaranteed to keep everyone entertained for days. Canyoning in the Alcantara Gorge: Introduce the younger members of the family (minimum age: 8) to the thrills of canyoning in the Alcantara Gorge. This involves travelling through a dry section of the Alcantara river bed, past…