Sardine Creek feeds into Big Cliff Reservoir through a gorgeous basalt-lined and thick forested canyon. Just after beginning the descent down the canyon is a 12 foot drop that can be rappelled or carefully downclimbed. After this is an 80 foot waterfall (80 to in a large cliff lined bowl. A good anchor can be had on a tree on the left and use padding as the rope goes over a sharp edge. At the bottom of the waterfall is a small pool next to an enormous overhanging boulder. You can either go left of the boulder and rappel 30 feet or go right of the boulder and scramble down large boulders to the bottom of another falls. Continuing on is a 40 foot waterfall which is rappelled from a tree on the right. Next come two waterfalls a few hundred yards apart. The first is about 20 feet high. It can be rappelled from a tree on the left or downclimbed on a large fallen log on the left. The next waterfall, Chasm Falls, flows into a pothole. You can anchor to a tree on the right and rappel 25 feet and then swim across the pothole. Just down stream of Chasm Falls you can exit the canyon up left over very loose rock to the road.