Perched on a vantage point with wide-reaching views across the South Downs is the striking Arundel Castle. Spanning 1,000 years since its Norman foundations, you can see the different epochs of Arundel Castle as it has been altered through time. Kids can dress up in costumes, there are walks around the stunning gardens and you walk through the furnished state rooms. One of the best things to do in the South Downs. Check their website for opening times.