Built as part of a grand spa complex at the beginning of the 20th century, Sopot's (M-4) lighthouse was completed in 1904 and is located right next to the pier entrance. A stone spiral staircase takes you to the 25m viewing platform, with a welcoming sofa thoughtfully provided half way up. Of little interest in itself, the lighthouse does at least provide breathtaking views of the coast and the spires of Sopot. The crest over the doorway comprises a mermaid, triton, and the official crest of the city.

Admission 5/3zł, groups over 20 people 2zł.