This small wetland area is set aside to provide a natural filter of storm water runoff, but it also happens to make a grassy path for a casual 1/2 mile loop walk.
You can park in the lot behind Wells Fargo, by the low fence. Walk around the south end of the fence to follow the grassy berm through the wetland. Then continue north past Les Schwab, along 192nd Ave around the wetland, then follow the grass strip between the wetland and the fence back to 34th St, and make the return to where you parked to complete a half mile stroll.