The Church of Our Lady of the Sea is a Roman Catholic church located in Cascais, Portugal. It is known for its beautiful architecture and stunning views of the Atlantic Ocean. The church is dedicated to the Virgin Mary, who is often referred to as Our Lady of the Sea, reflecting the maritime heritage of the region. Built in the 20th century, the church features a modern design with a prominent bell tower. Inside, visitors can find intricate religious artwork and a serene atmosphere, making it a popular destination for both worshippers and tourists exploring the coastal area.