Free Entry
Open any reasonable time during daylight hours
Address:
St Mary's, Isles of Scilly, Cornwall, TR21 0NE
These two artillery bastions and length of curtain wall on St Mary's in the Isles of Scilly belong to a fort begun - despite its name - in 1551, during the reign of King Edward VI. This fort was left unfinished when the headland now known as The Garrison was chosen as the site of the islands' main fortress, Star Castle.
Read more about the history of Harry's Walls.
Before You Go
Access: Access to the site is via an up-hill footpath. Situated overlooking the main harbour of St Mary's, the site is best accessed on foot or by bike.
Facilities: Shops, food outlets and toilets are available in Hugh Town.
Drone flying: Please see our Drone guidance
Plan a Great Day Out
The Garrison Walls were also built in the 16th century and can be found across the harbour.
Elsewhere on St Mary's you can visit three fascinating prehistoric sites - Porth Hellick Down Burial Chamber, Innisidgen Lower and Upper Burial Chambers and Bant's Carn Burial Chamber and Halangy Down Ancient Village.
At the Isles of Scilly museum in Hugh Town you can discover more about the rich history of the archipelago.
Your Places Appeal
Did you know over 300 of our historic sites are free to explore and enjoy, but keeping them open and cared for costs more than £4.2 million every year?
With your help, we can protect these historic places and make sure they can be enjoyed for generations to come.
Whether your donation today helps pay for the work of an expert stonemason, a key keeper’s time to unlock the gates or the restoration of a rare artefact, you’ll help care for precious heritage.
Donate today