Sounds fun!! I can't wait til the weather gets nicer here; I am dying to get my ratties outside. Especially Chloe and Daisy, they have never been outside before.

This is where the ratties go for fresh air:

We also have a giant all screen tent, used for camping, I set that up sometimes then they can romp around in the grass and not have to worry about the West Nile mosquitoes and hawks. lol.
Just make sure that you keep a good eye on those boogers, they can get out of the most "secure" cages. Nugget, Sweet Pea, and Punkin got out of their outdoor run (don't use it anymore), thank God I found them. Little Sweet Pea was in the hose reel box, and Nugget went in the chipmunk hole at the bottom of the beachnut tree. We had to go buy a Havahart live trap and catch her that way. Punkin was on top of the hose reel box. Little stinkers!! Hawks are a big problem around here too, so I am constantly looking in the trees while they are romping around in the grass.