The Rabbit Welfare Association & Fund (RWAF) in the UK published an interesting article with photos of a large rabbit run for outdoor use. Rabbits have been traditionally kept in hutches in the UK, however, the trend is toward "house" rabbits. Bringing rabbits indoors to be part of the family like a cat or dog is catching on there like it has in the US. I have never been a proponent of outdoor hutches. Nonetheless, I think a run in the garden is fine for rabbits in good weather with some supervision. Where I live there are just too many predators to ensure the safety of my rabbits outdoors. Bears, an occasional mountain lion, raccoons, feral dogs/cats, weasels, eagles, coyotes, etc. are all looking for a free lunch. The RWAF also created a great video from a rabbit's point of view about hutches. See the article here with more photos.