Cuckmere Haven and Litlington
Seaford, East Sussex
The Cuckmere Haven walk follows the river from the floodplain meanders near Exceat to the shingle beach where the Cuckmere meets the sea. The route takes in chalk downland above the valley and the village of Litlington before looping back along the riverbank.
This is a predominantly on-lead walk. Chyngton Farm runs a 700-ewe flock and a herd of Sussex beef cattle across most of the valley fields for much of the year. Where the chalk path runs clear of livestock, your dog can go off lead under close control.
The calmer, non-tidal section of the river near Litlington is genuinely swimmable and dogs use it regularly. Keep clear of the estuary near the beach mouth, where tidal currents are strong enough to be dangerous for dogs and people alike.
The valley floor can flood badly between November and February. The shingle beach has no seasonal dog ban. Adders are active on the chalk grassland from April.
The Plough and Harrow at Litlington and the Cuckmere Inn at Exceat Bridge are both directly on the route and welcome dogs.
Frequently asked questions
Can I let my dog off the lead at Cuckmere Haven?
Only on sections clear of livestock and cliff edges. Significant sections of this walk pass through actively grazed fields - the Chyngton Farm fields alone host around 700 ewes for most of the year. Near the cliff tops on Seaford Head, dogs must also be on lead. In practice this is a predominantly on-lead walk with some stretches of open chalk path where off-lead is possible under close control.
Is the beach dog-friendly all year?
Yes. Cuckmere Haven beach has no seasonal dog ban. Dogs are welcome on the shingle beach year-round. Be aware of the tidal estuary that splits the beach - check tide times before attempting to cross it.
Is it safe for dogs to swim in the Cuckmere river?
In the calmer meandering sections upstream near Litlington, yes - dogs swim here regularly. Avoid the tidal estuary section near the beach mouth, where currents are strong enough to be dangerous.
Does the walk get flooded?
The valley floor and riverside sections are prone to seasonal flooding, typically November through February after heavy rain. The floodplain meadows alongside the river meanders are the worst-affected areas. In very wet winters, sections can be impassable. Check conditions before visiting in winter.
Plan this walk with live weather and dog-safe route info