16th-century fort built over St Mary's Pool harbour, but never finished Select ratingGive Harrys Walls 1/5Give Harrys Walls 2/5Give Harrys Walls 3/5Give Harrys Walls 4/5Give Harrys Walls 5/5 No votes yet Rate Location Isles of Scilly Go to website » Attractions near Harrys Walls King Charles Castle Cromwell's Castle Garrison Walls The Old Blockhouse Tresco Abbey Gardens
