Posted: 20/07/2014 at 18:38
What animals are you hoping to see? Most animals choose to hibernate and breed as far from humans as possible. Are your children of an age when they will be disappointed if animals don't hibernate in your garden?
Sadly, even if you build dens, there is no guarantee animals will use them.
On the other hand I think you would find it very rewarding if you set up a bird table and in the Spring a web-cam in a bird box, which you can watch in the house.