The park is located on the site of the former city walls, where the distinctive star-shaped bastions were engineered to withstand artillery fire.
The defensive water features known as the 'Singel' still surround the park, serving as an original 17th-century canal system.
The layout reflects the 'Haarlemmerhout' landscape style, favoring naturalistic paths over formal 17th-century geometric design.
Remnants of the old ramparts remain visible as elevated earthen mounds throughout the current park grounds.
De Bolwerken is a historical park built upon the remnants of Haarlem's 17th-century defensive fortifications. The park consists of a series of elevated ramparts and moats that once protected the city center from military advances. It features winding paths through mature forested areas, providing a green buffer between the historic city core and the surrounding residential districts. The site is characterized by its high earthwork mounds and water features, which have been repurposed into a public recreational space. It serves as a key part of the city's green belt, offering long walking routes that circle the northern edge of the historic city.
The bridge crossing the canal looking back toward the elevated wooded ramparts.
Combine your walk with a visit to the nearby Molen de Adriaan for a panoramic view of the park's layout.
Follow the water-side paths to see local waterfowl and undisturbed segments of the old city moat.
Bring mosquito repellent during late summer evenings, as the surrounding water attracts insects.
Do not attempt to walk on the steep, unprotected edges of the ramparts where erosion control is in effect.
