Clacton-on-Sea possible invasion beach-head for Napoleon and his Dutch allies. There was a large army and militia camp where Holland-on-Sea now stands. In 1810 5 Martello Towers were built there to guard the beaches between Jaywick and Holland. Clacton was still a small village and a few outlying hamlets when the Essex railway engineer Peter Bruff, the steamboat owner William Jackson, and a group of businessmen built a pier and hotel there in the 1871. In the 1880s the Great Eastern Railway reached it, and it grew into the largest seaside resort between Southend and Yarmouth, with some 10,000 people by
Rhos-on-Sea between Llandudno and Rhos-on-Sea from 1907 and extended to Colwyn Bay in 1908. The service closed in 1956. The community boundaries are coterminous with the electoral ward of Llandrillo-yn-Rhos, which elects four county councillors to Conwy County Borough Council. Rhos-on-Sea is also divided into two community wards, of Rhos and Dinarth. Rhos elects up to five councillors and Dinarth elects up to three councillors to the Bay of Colwyn Town Council (which was formed in 1996). Rhos-on-Sea Rhos-on-Sea (), also known as "Rhos" or "Llandrillo", is a seaside resort and community in Conwy County Borough, Wales. The population was 7,110