Take the Eagle River Road for several miles up the valley until one gets to the end of the road at the Eagle River Nature Center. Pack up your stuff and hit the trail directly behind the Nature Center. Hike on the main trail for 30-45 minutes until the trail comes down to the river at Echo Bend and the valley opens up. Most climbs exist on the opposite side of the river and therefore the river must have time to freeze before accessing these climbs.
ALERT: A fee is required to park in this lot and can be paid in a box near the door of the Nature Center.