About This Place

Thorney Island is part of the maze of waterways that form Chichester Harbour. The island is technically a peninsula although it is partially separated from the mainland by a channel known as ‘The Great Deep’. Whatever you call it though, Thorney Island is a virtually untouched slice of wilderness that feels a million miles away from the mainland. --> The beaches are located towards the southern tip of Thorney Island and comprise of some long stretches of shingle and sand with the mud flats of the harbour beyond. As the tide comes in the view improves and the water is warmed by the mud banks making it a pleasant spot for a paddle. The very southern tip, towards Pilsey Island is a hotspot for a number of bird species including brent geese, curlews, skylarks, shelduck, egrets and even osprey. Please note Thorney Island is largely Ministry of Defence land so stick to the marked paths.

💡 Our Take

Looking for a dog-friendly beach in West Sussex? We recommend Thorney Island Beach! While details are limited, the best part is there are no known restrictions, meaning your furry pal can likely enjoy the sandy shores year-round. Parking close by should make access easy. Nearest facilities are unknown, so pack everything you need – water, snacks, and poo bags. We advise extra caution when considering swimming, as safety information is unavailable. Thorney Island is probably great for calm, well-behaved dogs to enjoy a quiet stroll. Tip: Bring extra water as there may not be fresh water sources!