Colchuck Lake:
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Difficulty: Hard
Length: 8 miles
Route type: Loop out and back
Nearest Thrifty car rental location: Seattle-Tacoma International Airport
The Colchuck Lake hiking trail is a slightly longer option, at around eight miles. But the glistening waters and breathtaking mountain views make it well worth the effort. Wind your way up through timber forests and over broiling creeks, where whitewater bowls over mossy rocks.