Scheduled MonumentsWalesDinas Dinlle Seagull Trench
Modern · Seagull Trench

Dinas Dinlle Seagull Trench

Conwy, Wales
Cadw SAM CN396
Period
Modern
Site type
Seagull Trench
Broad class
Defence
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Dinas Dinlle Seagull Trench is a First World War defensive fortification located near Dinas Dinlle in Conwy, Wales. The structure represents part of the local defensive preparations undertaken during the Great War, when coastal areas of Britain were assessed for vulnerability to enemy attack or invasion. The trench system, known colloquially as the Seagull Trench, reflects the pattern of emergency fortification work carried out across Welsh coastal regions during 1914–1918. The site is registered as a Scheduled Ancient Monument (Cadw reference CN396), acknowledging its historical importance as evidence of wartime defensive engineering and community response to military threat during the First World War.

Dinas Dinlle Seagull Trench is a scheduled monument protected by Cadw under reference CN396. View the official record →

About this monument

Questions & answers

What is Dinas Dinlle Seagull Trench?

Dinas Dinlle Seagull Trench is a First World War defensive fortification located near Dinas Dinlle in Conwy, Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CN396.

What period does Dinas Dinlle Seagull Trench date from?

Dinas Dinlle Seagull Trench dates from the modern period, and is classified as a seagull trench. It is one of over 32,000 scheduled monuments protected across Britain.

Who is responsible for protecting Dinas Dinlle Seagull Trench?

Dinas Dinlle Seagull Trench is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CN396.

What other scheduled monuments are near Dinas Dinlle Seagull Trench?

Several scheduled monuments lie within 10 km, including Penarth Burial Chamber (5.5 km), Y Foel Camp (6 km), Cross Inscribed Stone Near Capel Uchaf (6.7 km).

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