Nestled in the charming locality of Edogawa, Japan, Sanmai-Su is a picturesque beach that offers a tranquil escape from the hustle and bustle of city life. Though it spans a modest length and boasts a stunning hue of sand, its serene ambiance is its most inviting characteristic. Despite its beauty, Sanmai-Su has few amenities, so plan your trip accordingly, although it does not allow dogs, does not have facilities for disabled visitors, no restrooms are available, camping and surfing are not permitted. The beach activities are primarily focused on relaxation and simple joys, such as sunbathing, picnicking, and leisurely strolls along the shore, making it a perfect location for those seeking a peaceful day by the sea.