historicengland.org.uk · Heritage Register
Scheduled Monument entry for the Inner Mulberry / Intermediate Pierhead Pontoon.
Dive Spot Guide•
Inner Mulberry
Tidal harbour remnant with anemones and slack-water timing.
Local operator required
Use a local boat operator to hit the workable tide window.
Shallow boat dive off Selsey; plan around tide and visibility, with strong local interest for invertebrates and small critters.
About Inner Mulberry
Inner Mulberry is a shallow, tide-sensitive Mulberry Harbour remnant off Selsey, marked by a tall red can buoy and best dived around slack or high water. The structure is more about the life clinging to the concrete and steel than big scenery, with dense anemones, nudibranchs, scorpionfish, crabs, and lobsters giving it interest. It suits divers who are happy to work around the tide and accept short-visibility UK conditions.
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Research Estimate At Inner Mulberry
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 4m
AccessModerate entry effort
CoralHeavily damaged
Aquatic LifeGreat variety
FacilitiesGood facilities
CurrentStrong current
Where Is Inner Mulberry?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Inner Mulberry Planning Details
Depth range, seasonality, and planning context.
Reported Depth
0m - 15m
Depth Note
The structure dries at low water and is best dived around slack or high water.
Best Season
Summer, when calmer conditions and lower turbidity make the site easier to read.
Typical Conditions
Shallow tidal harbour water with variable visibility; summer slack-water windows are the easiest way to see the structure clearly.
Safety & Access At Inner Mulberry
Hazards, restrictions, and access requirements.
Key Hazards
Low visibilityRestricted accessStrong current
Safety Notes
Slack-water timing matters more than depth. Low water exposes the structure, and strong tide or poor visibility can make the site much less forgiving.
Access Restrictions
Plan the dive around slack or high water; the structure dries at low water and the access window is tide-dependent.
Legal Notes
Treat it as a protected heritage feature and follow local access guidance.
Local Intel For Inner Mulberry
Community notes to help plan your visit.
Scuba Diving
Shallow structure diving with wreck-like surfaces, swim-through feel, and plenty of small invertebrate life.
Freediving
Workable for shallow breath-hold sessions around slack tide, but the tide window and low visibility are the real constraints.
Snorkeling
Possible from a boat in calm, well-timed conditions, especially when the structure is just covered.
Wildlife at Inner Mulberry
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Inner Mulberry
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Inner Mulberry
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility4m
Activity
No dive activity logged yet.
