Hiking recommendations: Sprague Lake Trail - 0.8 miles, easy Alberta Falls - 1.6 miles, easy Dream Lake - 2 miles, easy Gem Lake - 3.1 miles, moderate Emerald Lake - 3.2 miles, moderate Bierstadt Lake Trail - 3.2 miles, moderate Loch via Glacier Gorge Trail - 5.4 miles, moderate Sky Pond via Glacier Gorge Trail - 8.5 miles, hard *Please note, reservations are required to get into the park during peak season. They can be made online at www.recreation.gov