The castle grounds are partially accessible, but the interior of the tower and the ascent to the top are generally not wheelchair accessible.
The grounds surrounding Open Spijkenisse Castle are generally accessible, allowing wheelchair users to approach the base of the mound. However, the castle itself, being a reconstructed medieval tower on a motte (a small hill), presents significant accessibility challenges.
The ascent to the tower usually involves a sloped path or steps, and the interior of the tower typically consists of stairs to reach different levels. Therefore, while one can view the exterior from a distance, direct access for wheelchairs into the tower's upper levels is generally not possible. It is best to check with local tourism information for the most current and specific accessibility details if this is a critical concern, as conditions can change.