Rainy Lake Loop

This is one of the most rewarding short walks in the entire North Cascades — a gentle, nearly flat loop around a glacially-fed alpine lake that looks like it belongs on a postcard from Patagonia. The paved path winds through old-growth forest thick with moss and ferns before opening up to Rainy Lake itself, a striking pool of milky turquoise cradled by sheer rock walls and fed by a ribbon waterfall tumbling off the cliffs above. The elevation gain is barely noticeable — think parking-garage ramp, not staircase. The trail surface is smooth and well-maintained, making it one of the rare alpine experiences accessible to strollers and visitors with mobility challenges. This is the trail you bring your skeptical non-hiking friend to, the one that converts people into national park devotees in under an hour.