Grand Forks is filled with great hides but lacks a few nice big ones for the kids to trade from or for TB's to park for awhile. So, this short river hike will bring you to just the right spot.
Pull over near Spragett Bridge and head towards the river, the trail goes part way and then fades away but I am sure you'll do fine. Consider spending awhile throwing stones into the river while you're here too!
Please be careful to reconceal better than you found it.