I visit this open space at least a couple of times a month. It's pretty neat to see what's going on down in the wetlands area, and there's a trail that branches off of the sand creek trail and leads down to the creek itself. My kids love exploring aling the creek.
Sam M. on Sand Creek Greenway Trail
Part of my Stapleton--Broomfield bike commute. A few rough spots (I.e., bumpy, unpaved, homeless-inhabited) between Westerly Creek Park and Quebec St., but a great connector to the South Platte Trail and some well-maintained, senic paths sneaking along Sand Creek and I-270.
Turn in (off Smith Road) at the Morrison Nature Center, follow the road and park by what looks like a house. It's the Nature Center and is open every day, I think, with Rangers and real rest rooms. It's a loop trail with a pond in the middle and connects to the Sand Creek Trail.