Whilst Signal Towers provided a means of sending a message to Dublin, Martello Towers were much stronger and better defended. Below are ones you can easily visit on Garnish Island, Glengarriff and Bere Island
Martello Towers, like the ones shown on this page, were little nuggets of strength designed to withstand heavy bombardment and have great views of any incoming enemy. The walls were several feet thick
The pin was there to support a gun, which could be swivelled 360 degrees with ease
