Sandrock Cliffs is a 4.4 mile loop trail located near Grantsburg, WI and is good for all skill levels. The trail is primarily used for hiking and is accessible from May until October.
Did this one in early May 2013, after a long winter. Trees still fairly naked in the area except for the hardy pines surrounding the river banks and the trail. Beautiful little trail in this part of the country. The cliffs are actually easier seen from the Minnesota side (which is a bit more difficult to access) as you'll actually be hiking up the cliffside on the Wisconsin side. Very easy and somewhat remote nature walk and a good place to picnic as well.