Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Dorney Park & Wildwater Kingdom is an American amusement and water park located in Allentown, Pennsylvania. The park features nine roller coasters, other adult and children's rides, and a large waterpark, Wildwater Kingdom. Dorney Park is one of the most popular amusement parks on the East Coast of the United States. It is an especially popular recreational destination for residents of Philadelphia and New York City, both of which are less than 90 miles (140 km) from the park. It features some of the world's most prominent rollercoasters, including Steel Force, the ninth longest steel rollercoaster in the world and the longest on the U.S. East Coast.