Please see the link below to the NJ Fish and Wildlife website with information on the snakes that can be found throughout New Jersey.

Although there have been reports of venomous snakes within Liberty Park, nothing has been confirmed as of this moment. Please keep your pets on a leash when walking with them and be aware of your surroundings. If anyone is bitten by a snake or their pet is bitten, please contact the Police Department.

https://dep.nj.gov/njfw/wp-content/uploads/njfw/snake_id_north-1.pdf