I have one russian tortoise, but I'm getting a second this summer. I live in MN so I keep mine inside all the time. This summer though, I plan on building something simple to let my torts graze on grass and dandelion and just get some good old fashioned sunlight. I can't let them live outside because we have crows, deer, and the occasional dog, I just want something that I can set up and bring my torts outside in the afternoon after work while my roomates and I hang outside, grill out, and have a few barley pops.