Free Swimming on the Sandy Beach Until Evening. Complete with Changing Rooms and Beach Tea Houses
About this spot
A sea bathing beach in the Teradomari area of Nagaoka City, Niigata Prefecture, open from July 11 (Sat) to August 16 (Sun) in 2026. Swimming is free, and the facility is equipped with changing rooms and paid hot water showers, so you won't have trouble changing or rinsing off salt water. There are two beach tea houses on the sandy beach that serve as bases for meals and rest. Restrooms are also complete, making it safe for families with small children. On this open sandy beach facing the Japan Sea, you can fully enjoy summer from water play at the water's edge to sand play until evening. Note: BBQ is not permitted.
Season & hours
Name: 寺泊中央海水浴場
Date & time: 7/11 (Sat)–8/16 (Sun)
Venue: 長岡市・寺泊中央海水浴場
Tips
Swimming is free, but hot water showers and beach tea house use are paid, so bring small change. Beach sandals are essential as summer sand gets hot. BBQ is not permitted, so enjoy meals at the beach tea house or with a packed lunch. After sunset, the beach gets cooler—perfect for evening strolls.
Best time to visit
From early afternoon (after 1 PM), the sunlight becomes slightly gentler, providing plenty of time for swimming until evening.
Access & map
Teradomari Central Sea Bathing Beach, Nagaoka City
Model course featuring this spot
2026 Teradomari Central Sea Bathing Beach 1-Day Full Experience Course
Niigata
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