Fort Delaware, located on Pea Patch Island in the Delaware River, has a rich history dating back to its construction in the 1850s. Originally built as a coastal defense fortification, it played a significant role during the Civil War where it served as a Union fortress and prison for Confederate soldiers, holding over 33,000 prisoners throughout the war. Its formidable structure and strategic location made it an essential part of the Union's defense strategy. Visiting Fort Delaware State Park today offers a unique glimpse into the past. The journey begins with a .5-mile ferry ride across the river from either Delaware or New Jersey. Once on the island, you can explore the fort's well-preserved structures, including the massive granite walls, gun emplacements, and prison barracks. Guided tours led by costumed interpreters provide information about the fort and the daily lives of soldiers and prisoners during the Civil War era. The park also features living history demonstrations, reenactments, and interactive exhibits for visitors of all ages. Once you are done exploring the fort, there are some great nature trails on the island and observation areas that offer opportunities for birdwatching and for enjoying the island's natural beauty.