The dog pen was specifically designed to be used in good weather, when the boys would rather be left outdoors than in.
It's only really used if we both have to go out together, or if some event is taking place which involves strangers being around (in today's case, hunters and gun dogs).
They definitely like being in there; I think they see it as their own private house and garden. I only have to shout the word 'Kennel', and they rush in and make themselves comfortable.
Sometimes they settle down together in their 'Caribbean style cottage', but yesterday only Monty was in residence. Bok was flat-out on the 'lawn', recovering from a very long, hot, walk through the woods.