The tea-colored falls are a top UP attraction. The Upper Falls, 200ft across with a 50ft drop, wow onlookers – including Henry Wadsworth Longfellow, who mentioned them in his Song of Hiawatha . The Lower Falls are a series of small cascades that swirl around an island; many visitors rent a rowboat and paddle out to it. The park also has camping (tent and RV sites $17 to $25), great hiking and – bonus – a brewpub near the entrance.