The Needles Batteries and the Rocket Launching site are located on the Down It is here where the Black Knight and Black Arrow rockets were tested before being shipped to Woomera in Australia. The entire site is now owned by the National Trust, although it is bordered by The Needles - Landmark Attraction at Alum Bay, which is owned by an independent company. The Rocket Testing site is free to enter, although the Old Battery requires a modest fee.