Thorney Island loop from Southbourne
Thorney Island loop from Southbourne
4.7
(77)
483
hikers
03:45
14.9km
20m
Hiking
Hike the 9.3-mile Thorney Island loop from Southbourne for coastal views, wildlife, and a unique experience on MOD land.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Chichester Harbour AONB
Waypoints
Start point
Train Station
Get Directions
2.40 km
Highlight • Viewpoint
Tip by
2.81 km
Highlight • Natural
Tip by
4.61 km
Highlight • Religious Site
Tip by
6.16 km
Highlight • Viewpoint
Tip by
6.60 km
Highlight • Natural
Tip by
8.83 km
Highlight • Natural Monument
Tip by
14.9 km
End point
Train Station
Way Types & Surfaces
Way Types
11.1 km
2.89 km
459 m
290 m
139 m
Surfaces
13.3 km
639 m
546 m
< 100 m
Sign up to see more specific route details
Sign up for free
Elevation
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Tuesday 5 May
16°C
8°C
-- %
Additional weather tips
Max wind speed: -- km/h
to get more detailed weather forecasts along your route
This route was planned by komoot.
While the tour starts from Southbourne, specific parking details are not provided. It's advisable to look for public parking options within Southbourne village before your hike. Be aware that parking can sometimes be limited, especially during peak seasons.
Yes, the Thorney Island loop is generally dog-friendly. However, as much of the route passes through a significant wildlife haven, including an RSPB nature reserve at Pilsea Island Beach, it's crucial to keep dogs under close control, preferably on a leash, to protect ground-nesting birds and other wildlife. Always clean up after your dog.
The trail can be enjoyed year-round, but spring and autumn are particularly good for birdwatching. Be aware that sections can become very muddy after rain or due to tidal influences, so check weather and tide conditions before you go. The scenery changes dramatically with the tide, offering a different experience on repeat visits.
No, there are no specific permits or entrance fees required to hike the Thorney Island loop. However, a significant portion of the island is owned by the Ministry of Defence (MOD), and you will encounter security gates. You must stick strictly to the public coastal path and may need to provide details via intercom at manned or remotely controlled gates.
A large part of Thorney Island is an active military base (Baker Army Barracks). Hikers must adhere strictly to the public coastal path. You will encounter security gates, which may be manned or remotely controlled via intercom, requiring you to provide your details for access. This unique aspect adds a distinctive element to the walk. Be aware that access through these gates may have time restrictions, potentially closing after 6 pm.
The terrain is predominantly flat, making it an easy walk. You'll traverse seawalls, dyke paths, and foreshore paths. While generally easy, sections can become muddy, especially after rain or during high tides, so appropriate waterproof footwear is highly recommended. The path is not wheelchair accessible.
The loop offers diverse scenery and points of interest. You'll pass by Thornham Bridge, walk along the Thorney Island Perimeter Trail, and see St Nicholas Church, West Thorney. Other highlights include Longmere Point Beach, Pilsea Island Beach (an RSPB reserve), and enjoy a View of Chichester Harbour Entrance. You'll also spot former RAF runways and tranquil coastal vistas.
The area is a significant wildlife haven, especially for birds. You can expect to see numerous species, particularly around the mudflats and tidal creeks. Keep an eye out for oystercatchers, curlews, Brent geese, egrets, and herons. The Pilsea Island Beach area is particularly good for birdwatching.
Yes, the coastal path around Thorney Island forms part of several longer routes. It includes sections of the King Charles III England Coast Path: South Hayling to East Head, and the initial section of the 170-mile Sussex Border Path. You'll also find parts of the South Coast Cycle Route and National Cycle Route 2 South Mundham to Christchurch intersecting.
Yes, the trail is predominantly flat and considered easy, making it suitable for casual walkers, families, and beginners. The 8-mile (13 km) circular route typically takes 3 to 4 hours at a relaxed pace. However, be prepared for potentially muddy sections, especially after rain, and ensure children understand the need to stay on the public path due to the military presence.
As the Thorney Island loop is located within the Chichester Harbour National Landscape (formerly AONB), it's important to respect the natural environment. This includes sticking to marked paths, keeping dogs under control (especially near wildlife), taking all litter home, and being mindful of the sensitive ecosystems, particularly the intertidal mudflats which are a Site of Special Scientific Interest and a Special Protection Area/Ramsar Site.
Took a little longer as we had to have a quick dip. It would've been rude not to 🙄
Annoyingly I need to go 12k to figure last patch of the route is closed by mod and need to go all the way back, paths are not well maintained full of nettle and bramble