Incheon, close to Seoul, offers beautiful beaches ideal for enjoying the romantic winter seas and stunning sunsets. Recommended spots include Dongmak Beach, Mashian Beach, and Eulwangri Beach, known for their unique views and accessibility. Dongmak Beach features exotic sea ice formations during winter, resembling a movie scene. Mashian Beach offers a 3km coastline with nearby islands and cozy cafes for a relaxing walk. Eulwangri Beach is famous for its crescent-shaped sandy shore and proximity to local seafood restaurants, perfect for enjoying a sunset and a delicious meal afterwards.