Just on a serious note for the time being, you may be aware of the terrible disease Leishmania but if not and with you bringing your border collie to Spain, you should get your dog a Scalibor collar as this is very helpful against the sand flies, mosquitoes which spread the disease. Try and get as much info as possible, as there is now a vaccine but some vets do not like it. Our regime is to change the collars every 6 months and we spray our tribe with lemon juice and also around the doors ,fly netting and windows and so far this has worked for us.

Unfortunately as for agility we have not been able to convince our tribe to take this up, as getting onto the sofa and off is exercise enough and as for search and rescue, unless it involves food in great amounts they have no interest. 
Yours always living in hope Bulldog.