Bring a camera to capture the flowing cascades of Gumunso. If it's raging, you may be able to feel the mist on your face.
When you've finished up at this Taebaek cascade of water, why not make your way to Taebaeksan Mountain Cheonjedan, ChooChoo Park, and Taebaek Speedway Co.? They're not too far from Gumunso and also a favorite with many travelers.