Castle Semple is a historic structure located in Renfrewshire, Scotland. Originally built in the 16th century, it has undergone various renovations over the years. The castle is set within a picturesque landscape, surrounded by gardens and woodlands, making it a popular spot for visitors. The estate is also home to Castle Semple Country Park, which offers recreational activities such as walking, cycling, and water sports on Castle Semple Loch. The park is a designated nature reserve, providing a habitat for various wildlife species, and serves as a tranquil escape for nature lovers.