Ver Cuevana2. Welcome to Clementon Park! The park is located in Clementon NJ in South Jersey. The park is home to two Rollercoasters and a very nice water park. This park closed in 2019 after being open for over 100 years. In 2021 the park reopened with an amazing comeback... but what lead to this? How did it even happen? We hope to showcase the over 100 years of history in this exciting documentary.