There is no parking at the site but there are pay-and-display car parks at both Keyhaven (postcode SO41 0TP) and at Milford on Sea seafront (postcode SO41 0PY).
There is no road access along Hurst Spit to the castle so either park at Keyhaven (see Parking details) and use the ferry to the castle (see Ferry details below) or walk approximately 2 miles along the shingle spit from Milford on Sea (sturdy footwear required).
More X1 to Milford on Sea to within 2 1⁄2 miles, or 1 mile to ferry
Lymington Town 6 1⁄2 miles
New Milton 4 miles
Daily service from Keyhaven from April to October. First ferry departs Keyhaven at 10am and then approximately every 30 minutes.
Visit the Hurst Marine website for details and to book.