"Some hikes are extraordinary for the beauty of the terrain they cross and some for the reward at the end of the trail. The Twin Falls Trail is extraordinary for both. The trail follows the South Fork of the Snoqualmie, passes through old-growth forest, and reaches two breathtaking waterfalls, one above the other.
Twin Falls is accessible from two trailheads, one above the falls and one below. Both are within the boundaries of Olallie State Park, although the lower trailhead has signs indicating it is Twin Falls State Park. According to the Washington State Park map, the lower trailhead and falls are within the Twin Falls Natural Area, a portion of Olallie State Park. The route described here starts at the lower trailhead, which begins along the bank of the rushing Snoqualmie River, its icy waters fresh from the peaks above Snoqualmie Pass. The trail winds its way through a grove of giant maples, their trunks and branches thickly coated with pads of moss and spiked with ferns, making this spot an oasis of green even in winter."