Bring a camera to capture the spectacular cascades of Windberg Waterfall. If it's raging, you may be able to feel the mist on your skin.
Situated in St. Blasien, this cascade of water is worth including in your schedule. But you'll find lots more to check out in the area. Lake Schluchsee, Radon Revital Bad, and Dom St. Blasien aren't too far away from Windberg Waterfall.