On a very rainy day at my home in the UK it's that time of year to think about holidays and summer sun. Many Spanish shelters welcome volunteers to help with the care of their rescued hounds and it's very rewarding. Many first-time volunteers return again and again.
This link is to the galgo and podenco rescue associations by country - many Spanish ones are listed - for both mainland Spain and the Canary Islands. Please contact them direct, you will be welcomed with open arms.