1 Arriving on Orford Ness, follow the red trail, which is waymarked with red arrows painted on to the road surface. It is essential to stick to the authorised route, not only to avoid disturbing wildlife but also to keep out of the way of unexploded ordnance, which remains a potential danger.
2 The trail begins by the wall of the River Ore, looking out over marshes where cattle graze on the site of a World War One airfield. In late summer, once the birds have finished nesting, you can continue along the river on the green trail through an area of marshes and lagoons. The main trail turns away from the river at this point and heads for an information building in the former telephone exchange. Look inside at the displays on the history of Orford Ness and the large aerial photograph of the shingle spit. Behind the building is an observation platform with views over the Stony Ditch creek and the strange pagoda-type structures of the Atomic Weapons Research Establishment, which operated here at the height of the Cold War.
3 Follow the trail along the High Street and bear right over a Bailey bridge to cross Stony Ditch, with salt marsh to either side. Fork right here to head for the Black Beacon, then head towards the beach, passing a police tower on the line of the old perimeter fence. Now turn left to walk along the shingle. The trail heads inland again when you come to a lighthouse and an old coastguard look-out that the National Trust plans to restore. Walk across the shingle to the Bomb Ballistics Building.
4 Walk back over the Bailey bridge and retrace your steps to the jetty.