East Sussex

Beachy Head and Belle Tout Lighthouse, Eastbourne, East Sussex

Geologically, East Sussex is part of southern anticline of the Weald: the South Downs, a range of moderate chalk hills which run across the southern part of the county from west to east and mirrored in Kent by the North Downs. To the north lie parallel valleys and ridges, the highest of which is the Weald itself (the Hastings beds and Wealden Clay). The sandstones and clays meet the sea at Hastings; the Downs, at Beachy Head. The area contains significant reserves of shale oil, totalling 4.4 billion barrels of oil in the Wealden basin according to a 2014 study, which then Business and Energy Minister Michael Fallon said "will bring jobs and business opportunities" and significantly help with UK energy self-sufficiency. Fracking in the area is required to achieve these objectives, which has been opposed by environmental groups.[7]

East Sussex, like most counties by the south coast, has an annual average total of around 1,750[8] hours of sunshine per year. This is much higher than the UK's average of about 1,340 hours of sunshine a year.

The relief of the county reflects the geology.

The chalk uplands of the South Downs occupies the coastal strip between Brighton and Eastbourne. There are two river gaps: the Rivers Ouse and Cuckmere. The Seven Sisters, where the Downs meet the sea, are the remnants of dry valleys cut into the chalk; they end at Beachy Head, 530 feet (162 m) above sea level. To the east of Beachy Head lie the marshlands of the Pevensey Levels, formerly flooded by the sea but now enclosed within a deposited beach. At Bexhill the land begins to rise again where the sands and clays of the Weald meet the sea; these culminate in the sandstone cliffs east of Hastings. Further east are the Pett Levels, more marshland, beyond which is the estuary of the River Rother. On the far side of the estuary are the dunes of Camber Sands. The highest point in the county is Ditchling Beacon on the South Downs, which has a maximum elevation of 248 m (814 ft)[9] and is classed as a Marilyn.

The Weald occupies the northern borderlands of the county. Between the Downs and Weald is a narrow stretch of lower lying land; many of the rivers and streams occupying this area originate in the Weald. The High Weald is heavily wooded in contrast to the South Downs; the Low Weald less so. Part of the Weald is the Ashdown Forest.

The location of settlements in East Sussex has been determined both by its history and its geography. The original towns and villages tended to be where its economy lay: fishing along the coast and agriculture and iron mining on the Weald. Industry today tends to be geared towards tourism, and particularly along the coastal strip. Here towns such as Bexhill-on-Sea, Eastbourne, and Hastings lie. Newhaven and Rye are ports, although the latter is also of historical importance. Peacehaven and Seaford are more dormitory towns than anything else. Away from the coast lie former market towns such as Hailsham, Heathfield and Uckfield; Crowborough is a centre for the Ashdown Forest. Lewes, the County town of East Sussex; and Battle, with its Norman Conquest beginnings, and Wadhurst are the other three towns of significance.

The A23, one of the major North-South routes.

East Sussex has no motorways, and even dual carriageways are sparse in the county. The main roads through the county are those part of the radial pattern from London: the A21 from Kent to Hastings; the A22 from Surrey to Eastbourne; and the A23 from Gatwick to Brighton. Cross-country routes include the A26 which carries traffic from Newhaven and Lewes north into Kent; and the south coast trunk route, which starts in Folkestone (Kent) as the A259 trunk road, and traverses the south coast to Eastbourne, where it becomes the A27 trunk road and heads westwards towards Chichester in West Sussex and ultimately to Honiton in Devon. All the main roads suffer from congestion and traffic problems: the A27 which connects Eastbourne to Portsmouth is one of the busiest trunk roads in the UK.

Bus routes serve all the main areas of settlement and many of the villages in the county.

The railways serve the main towns in a similar fashion to the roads. Until the closures of many branch railways in the 20th century, rural East Sussex was well-served by rail: few such branch lines escaped the Beeching cuts so that today only main-line services remain. They include the East Coastway Line (including the Marshlink Line); the Hastings line; and the Uckfield branch of the Oxted Line. There are three heritage railways: the Kent and East Sussex Railway operates from Tenterden in Kent to Bodiam; the Bluebell Railway from Sheffield Park to East Grinstead; and the Lavender Line Steam Railway near Lewes.

Trains in the county are operated by Southern, Southeastern, Thameslink and Great Western Railway. Southern is the key operator for the county, operating services along the West Coastway and East Coastway routes, as well as trains from Brighton, Eastbourne, Seaford and Hastings to London Victoria, and to a lesser extent London Bridge, which is also where trains to/from Uckfield go. Southeastern operate trains from London Charing Cross to Hastings. Thameslink operate trains from Brighton to Bedford.

Among the long-distance footpaths in East Sussex are the South Downs Way; 1066 Country Walk, High Weald Landscape Trail, Saxon Shore Way, Sussex Border Path, Sussex Ouse Valley Way, Vanguard Way, Wealdway and The Monarch's Way.