We walked down to the needles old battery from the car park. It is 1.2km but well worth the walk. There is a bus available if you don't fancy the walk. Once there the Old Battery is a step back in time and full of great history. The tunnel down to the needle spotlight is a must. There are areas to explore and different viewpoints around the area. Make sure you visit the tearoom, the best view from a tearoom i have ever had. And the savoury tea was an absolute delight. Highly recommended.