Okinoshima Park

Enjoy the sandbar leading to an uninhabited island

The Boso Peninsula in Chiba, japan, is home to one of the region’s best beaches. Located at the southernmost tip of the peninsula, Okinoshima Park is a hidden gem that offers visitors a unique experience. What sets this beach apart from others is its 200-meter sandbar that connects the mainland to a small uninhabited island. This sandbar provides a stunning pathway for beachgoers to explore the untouched beauty of the island.

How to Get There

Getting to Okinoshima Park is relatively easy, thanks to its accessibility by public transit. The nearest major city is Tateyama, which is approximately a two-hour train ride from Chiba on the JR Uchibo Line. From Tateyama Station, you can take a short bus ride to the Tateyama Air Base Bus Stop. From there, it’s just a 25-minute walk to Okinoshima Park.


The sandbar at Okinoshima Park is a natural wonder that has a fascinating history. It was once submerged under the ocean but was gradually raised by a series of major earthquakes over the last few hundred years. Now, visitors can walk across the sandbar during low tide to reach the island without getting wet. The island itself is approximately one kilometer in circumference and is covered in lush forest, with some trees dating back over 300 years. Exploring the island is a treat for nature lovers, as it offers a variety of plant life and unique rock formations. The beach surrounding the sandbar is also an excellent spot for seashell hunting, with plenty of treasures to discover.

Snorkeling Haven

Another highlight of Okinoshima Park is its snorkeling opportunities. The beach is located at the northernmost reach of the Pacific Ocean’s coral, which makes it an ideal spot for snorkeling during the summer months. The calm and warm waters provide a perfect environment for beginners to explore the underwater world. Grab your snorkel gear and dive in to discover the vibrant marine life that calls this area home.

Recommended for You

If you’re planning a trip to Chiba, there are a few other destinations that you should consider adding to your itinerary. The Boso Peninsula, where Okinoshima Park is located, is known for its natural beauty and scenic landscapes. One such destination is the Boso Peninsula, which offers breathtaking views of the Pacific Ocean and is a popular spot for hiking and nature walks. Another must-visit area is Kujukuri & Choshi, which boasts a long stretch of coastline and is famous for its surfing spots. Whether you’re looking for relaxation or adventure, these destinations have something for everyone.

In conclusion, Okinoshima Park in Chiba, Japan, is a hidden paradise that offers visitors a unique beach experience. The sandbar leading to the uninhabited island provides a stunning pathway for exploration, while the surrounding beach is perfect for swimming, snorkeling, and seashell hunting. With its accessibility by public transit and its proximity to other attractions in the area, Okinoshima Park is a must-visit destination for nature lovers and beach enthusiasts alike. So, pack your bags and get ready to discover the beauty of this hidden gem in Chiba.

Address And Maps Location:

Tateyama, Chiba-ken

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