Cacilhas Lighthouse, known as Farol de Cacilhas, is located in Almada, Portugal, on the southern bank of the Tagus River. It was built in 1865 and stands at a height of 22 meters. The lighthouse serves as a navigational aid for vessels entering the river and is characterized by its distinctive red and white stripes. The lighthouse is situated near the popular Cacilhas waterfront, which offers stunning views of Lisbon across the river. Visitors can enjoy the scenic surroundings and learn about the lighthouse's history, making it a notable landmark in the region.