Since I'm new to the dayhome scene, and my kids are older, I don't have many outside toys for the yard. A trampoline that we will NOT be using, a sandbox with no sand (will fill it up in the spring)...in the warmer weather we played at the parks, but now that winter is here, I'd like to set up my yard to use for the dayhome kids. What are the must-haves for outdoor play in winter?

Thanks!