Shimane Prefectural Iwami Seaside Park stretches across the western part of Shimane Prefecture, extending from Hamada City to Gotsu City. Centered around approximately 5.5 kilometers of coastline, this expansive seaside park combines beautiful natural scenery with a wide variety of recreational facilities.
One of its greatest attractions is the approximately 3.5-kilometer-long arc of white sandy beach. The shallow, crystal-clear sea takes on a beautiful cobalt-blue color, creating scenery that can feel almost tropical. The area has also been selected as one of Japan’s 100 Best Swimming Beaches by Japan’s Ministry of the Environment.
With beaches, forests, walking trails, sports facilities, campsites, and family attractions, the park is an ideal destination for travelers who want to combine relaxation and outdoor activities.
The park’s broad sandy coastline stretches between the rocky areas of Akahana and Osakihana, forming a graceful arc along the Sea of Japan.
Behind the beach are hills and forests of Japanese black pine, the official prefectural tree of Shimane. The combination of white sand, blue water, green pine trees, and coastal scenery creates a classic Japanese seaside landscape.
Well-maintained walking paths wind through the park, allowing visitors to enjoy flowers, greenery, and the refreshing sea air at a relaxed pace. It is a pleasant place to escape the bustle of everyday life and reconnect with nature.
Anegahama Beach offers a variety of marine activities, including banana boats, stand-up paddleboarding (SUP), and jet skiing. Programs are available for beginners, with professional staff providing instruction and guidance so that visitors can enjoy the activities with greater peace of mind.
A free campsite nearby also makes it possible to enjoy an outdoor barbecue while looking out over the sea, making the area particularly appealing for families and groups.
Hashihama Beach is equipped with restrooms and shower facilities, making it convenient for a comfortable day at the seaside.
The Marine House provides hot-water showers, a rest area, and a light café, making it convenient for visitors planning to spend several hours at the beach.
Camping and barbecues are not permitted in this area, helping maintain a quieter atmosphere for those who simply want to relax beside the sea.
Hashii Tower is one of the symbolic landmarks of Iwami Seaside Park. Its design was inspired by the waves of the Sea of Japan, while the wires extending from the structure evoke the image of a traditional fishing net being cast into the sea.
The main tower stands approximately 50 meters high, and the entire structure extends for approximately 220 meters. Its distinctive form can be seen from a distance and reflects the area’s connection with both the sea and local culture.
The approximately 37-meter-long Sand Dune Tunnel provides a memorable route toward the coast. After walking through the tunnel, visitors suddenly emerge to a spectacular view of the vast Sea of Japan and the white sandy beach.
The dramatic transition from the enclosed tunnel to the open seascape makes this a popular spot for photographs. A leisurely walk while feeling the sea breeze is also highly recommended.
Iwami Seaside Park offers a wide range of facilities for families and outdoor enthusiasts, including large open spaces, observation areas, and tennis courts equipped with nighttime lighting.
The park also has several accommodation options, including an auto campsite, cabin village, and free camping areas. Visitors can therefore enjoy everything from a casual day trip to a longer seaside outdoor adventure.
The park has also hosted the World Auto Camping Convention, reflecting its reputation as a well-equipped destination for camping and outdoor recreation.
Aquas Land is a popular family area featuring one of Japan’s largest-scale wooden athletic playgrounds.
Facilities include an approximately 60-meter-long slide, trampolines, and playground equipment designed for younger children. Children and adults alike can enjoy moving, climbing, sliding, and playing in an outdoor environment.
The area also incorporates barrier-free design, making it accessible to a broad range of visitors and generations.
Adjacent to the park, Shimane AQUAS Aquarium is one of the largest aquariums in the Chugoku and Shikoku regions. Approximately 400 species and 10,000 marine animals are displayed throughout the facility.
One of the aquarium’s most popular attractions is the performance featuring beluga whales and their famous “Magic Ring”. The enchanting presentation is a favorite with visitors of all ages.
In the large panoramic tank, visitors can also watch sharks and rays glide through the water, providing an impressive view of marine life from close range.
The auto campsite enjoys an excellent location overlooking the sea and provides a comfortable setting for an overnight outdoor experience.
Facilities include sites suitable for camper vans and permanent tent sites, making camping accessible even for beginners. Its history as a venue for the World Auto Camping Convention also reflects its well-developed facilities.
The park’s log cabin-style accommodations offer a comfortable way to stay surrounded by nature. Cabins are available in large, medium, and small sizes, accommodating families as well as groups traveling together.
Spending time beneath the trees and enjoying the gentle light filtering through the leaves provides a relaxing alternative to conventional accommodation.
For visitors who want to enjoy outdoor recreation more casually, the free camping areas provide an accessible option. Beach houses also offer events and shops, and the area becomes particularly lively during the summer season.
The park has eight artificial-turf tennis courts, with nighttime use also available.
The central plaza and grassy open spaces provide plenty of room for picnics, light exercise, and simply relaxing outdoors. Visitors can choose between active recreation and a slower pace depending on their interests.
From the Takegashita Observation Deck and Akahana Observation Deck, visitors can enjoy expansive views across the Sea of Japan.
The Akahana Walking Trail passes through areas surrounded by Japanese black pines, offering a peaceful way to experience the park’s coastal landscape. The scenery changes throughout the year, providing a different atmosphere in every season.
The Garden of Flowers and Greenery is a tranquil area where seasonal flowers bloom among greenery and water features.
Indoor facilities are also available, making this an enjoyable place for families with young children even when the weather is less suitable for outdoor activities.
Although Iwami Seaside Park is especially popular for swimming and marine activities during summer, its appeal extends throughout the year.
Spring brings seasonal flowers and fresh greenery, while autumn offers changing foliage and cooler temperatures ideal for walking. In winter, the quieter coastline takes on a peaceful and dramatic character.
Whether you want to swim in the clear waters of the Sea of Japan, enjoy camping beneath the trees, let children explore a large playground, play sports, or simply walk beside the coast, the park offers a wide range of ways to enjoy the natural beauty of western Shimane.
Shimane Prefectural Iwami Seaside Park is approximately 6 minutes by car from the Hamada-Higashi Interchange on the San’in Expressway’s Gotsu Road. It is also approximately 10 minutes on foot from Hashi Station on the JR San’in Main Line.
The convenient access makes it easy to include the park in a sightseeing itinerary around Hamada and Gotsu, whether traveling by car or public transportation.
With its beautiful white sands, cobalt-blue sea, pine forests, walking trails, campsites, sports facilities, and family attractions, Shimane Prefectural Iwami Seaside Park offers far more than a place to swim.
It is a versatile destination where travelers can experience the Sea of Japan in many different ways. Spend an active day enjoying marine sports, relax beneath the pine trees, stay overnight at a campsite, or combine your visit with a trip to the nearby aquarium.
For anyone exploring western Shimane, this expansive coastal park offers an excellent opportunity to enjoy the region’s natural beauty while creating memorable experiences by the sea.