A hike through alder branches, thick vine maple stands, stinging nettle, devil’s club and a moss-covered gully is all worth it to reach this gem-colored lake. Bright and inviting, that first cold plunge into the icy lake re-invigorates like nothing else can. That’s what a trip to North Cascades National Park in Washington is all about. Photo from Trapper Lake courtesy of Crystal Brindle.