When I was cycling around a recreational area one day, I passed this facility. It's just north of Rotterdam in a village called Bergschenhoek, but it will require a car to bring the dogs there. Or a bus trip, which isn't always very appealing when abroad.
When I passed it, I saw an outside area as well as an inside area with couches for dogs to sleep in. It's situated literally on the edge of a decent sized recreational forest/park. If you'd want them to, they could take your dogs out for a good walk there.
They do require neutered males (or ones that have a temporary implant to render them calmer and infertile) or bitches that are not in heat. As well as all the normal vaccination shots.
http://www.verashondenopvang.nl/