First State State Park in New Castle County celebrates Delaware's identity as the First State, the first to ratify the U.S. Constitution in 1787. The park's setting ties into the history of the region, including the era of William Penn, who landed at nearby New Castle in 1682. Visitors can explore trail sections that connect the park to the surrounding countryside, making it a good choice for walking and light hiking. The park's historical theme gives a walk here a bit more context, with the landscape linked to some of the earliest chapters of Delaware's story. Entry is $4 for Delaware residents and $8 for out-of-state visitors on weekdays, and $8 and $16 on weekends, from March through November. It pairs well with a visit to the historic town of New Castle.