my coming up 14wk pom pup absolutely loves going park with me & 2yo DD.
she goes up the ramp with DD and down the slide (not forced) she slides down herself wether DD goes or not! she runs up a curly slide then slides down. walks over a high wooden slated bridge (access from curly slide)
tried to get on the swing next to DD's swing and tried to climb up a huge rock to sit with the kids 
she's like one of the kids! loves to join in chasing a football, attempts to get on a DS's skate board or scooter....
was going to look into agility classes but got one on me doorstep