Hi Phil, I'm sure you can't really be so fat with all that walking! We live in Terra Alta and have done alot of exploring of thr Ports from this end , either by off road cycling, walking or 4 by 4. There are some great walks around here. For starters you can walk from Gandesa up to Puig Cavaller, it is only 3 hours there and back and the view from the top is great. There are also some great walks from the Horta side. You can drive into the Ports from there and pick up a number of great walks from the picnic area by the river, this includes walks up to the impressive rocks d'en Benet, Picasos cave etc. Also, have you tried the walk from Fontcalda following the river Canallettes? Best of luck! PS. I can't wait for some snow!!!