I have a fenced in yard for the 'kids' if you want to come south a bit, and an in-ground pool for all the kids (skin and fur)! My 2 fur boys love swimming in the pool, they are very good at it.
The skin kids are always welcomed to the pool too, as long as they don't mind the fur kids being in with them! haha As for the Rottie, well I would be ok, but not ok with my boys if the Rottie were out. Ive been lightly bitten by 2 dogs in my life, and both were Rotties. I'm a little gun shy when it comes to them.