South Downs National Park, East Sussex and Hampshire, England
The South Downs are England's newest national park — 1,600 km² of rolling chalk downland stretching 160 km from Winchester to Eastbourne. The ridge is beautiful in dry weather and treacherous when wet. RambleMetric tracks the chalk path condition so you know before you go.
About South Downs
RambleMetric is a real-time conditions app built for inland walkers. It combines live weather, ground moisture, chalk path conditions and visibility into a single Visit Score — so you can plan South Downs walks knowing exactly what the ridge conditions are like.
The South Downs ridge is exposed high ground reaching 270 m. Chalk paths become dangerously slippery when wet — falls on muddy chalk slopes are a common cause of injuries. Channel weather systems cross the ridge rapidly. Data shown is gathered from third-party sources and may not reflect current on-the-ground conditions.
Walking Routes
Check the live Visit Score before you set out — conditions here change fast.
The definitive South Downs ridge walk — exposed chalk escarpment with views south to the Channel and north across the Weald. Chalk paths are excellent when dry and very dangerous when wet. The South Downs Way is well-signed throughout; return by bus or arrange transport.
The South Downs' highest point at 271 m — views to the Isle of Wight, Solent and across Hampshire. Queen Elizabeth Country Park has excellent car parking and café facilities. A manageable walk for most abilities in good weather.
Key Features
South Downs highest point at 271 m — an Ancient Monument with an Iron Age hillfort. The hilltop is one of the most accessible viewpoints in southern England, with 360° panoramas.
England's longest, widest and deepest dry valley — a dramatic chalk escarpment carved by permafrost meltwater during the last Ice Age. The most visited National Trust property in the South Downs.
England's prettiest Downland village — half-timbered buildings, a 14th-century thatched church, and the first building acquired by the National Trust in 1896. Gateway to the Cuckmere valley.
The 160-km national trail from Winchester to Eastbourne — running the full length of the chalk escarpment. Established 1972, it passes through rolling farmland, ancient drove roads and dramatic coastal clifftops.
Live Data
All data is fetched from authoritative UK sources and recalculated every few minutes.
Safety Information
Chalk paths are fine in dry weather but become like ice when wet — trekking poles recommended. The South Downs Way is the main long-distance route — 160 km ridge walk from Winchester to Eastbourne. Channel mist can sweep the ridge rapidly in autumn. Water sources are scarce on the chalk ridge — carry enough for your planned route. Dogs must be under control near livestock.
All data, scores and recommendations are for general informational purposes only and should not be relied upon as the sole basis for safety decisions. The Visit Score is an algorithmic estimate — it is not a substitute for your own judgement, local knowledge, or official guidance.
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