The visitor centre, shop, café and castle are reached by a steep tarmac ramp or path. From there, the route drops towards the castle through tarmac or bound-gravel paths, over a bridge into the keep and up wooden stairs to Grant Tower, with further steep or stepped sections around the Watergate, early castle and dovecot.
HES lists accessible bays, two wheelchairs and two mobility scooters on a first-come, first-served basis, plus an adapted toilet. These are useful provisions, but the site is not step-free. HES also cannot store prams, pushchairs or luggage, so contact the venue if a particular wheelchair route or mobility arrangement will decide the visit.