Walk across farmland with views of Wolstonbury Hill ahead then climb steadily (one short steep section).
From the top there are views all round.
After a break and chance to explore the ramparts, descend (steeply in parts - poles might be useful) and return via lane, woodland and farmland to start.
This link is to the historic england listing for the monument: https://historicengland.org.uk/listing/the-list/list-entry/1016153?section=official-list-entry
Morning break: Yes
start point: SE corner of park between South Avenue and Pit Lane, near Bowls Club
Toilets in NW corner of park
Free car parks in Hurstpierpoint (what3words link is the Trinity Road car park; further parking at Brown Twins Road (end of Trinity Road) - see attached image for map