Sea bathing until evening on a stretch of Kujukuri Beach
About this spot
Denka Beach is a swimming beach opened on Denka Coast in Hasunuma, Sanmu City. In 2026 it runs from Saturday, July 11 to Sunday, August 23, with swimming hours from 9:00 to 16:00. Located on a stretch of Kujukuri Beach, its wide, open sand lets the family spread out and enjoy sea bathing. Its location, easy to combine with the nearby Hasunuma Seaside Park and roadside station, is another attraction.
Season & hours
Name: 殿下海水浴場
Date & time: 7/11 (Sat)–8/23 (Sun) 9:00–16:00
Venue: 山武市蓮沼・殿下海岸
Tips
Swimming hours end at 16:00, so allowing time to change and wrapping up 15 minutes beforehand is recommended. It is reassuring to check details of fees and facilities on the Sanmu City official website in advance. The sand gets hot in summer, so do not forget flip-flops.
Best time to visit
Entering from around noon gives you plenty of sea bathing right up to the evening close
Access & map
Hasunuma, Sanmu City - Denka Coast
Model course featuring this spot
2026 Denka Beach Full-Day Course
Chiba
Explore features & model courses
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