The Unique Shape Behind the Name Taijima
The most remarkable feature of Taijima is its unusual shape, which is said to resemble a sea bream swimming on the surface of the water. The main body of the island is covered with lush vegetation, while the tail consists of steep, exposed rock. The rocks are often whitened by seabird droppings, creating a striking contrast between the green body and pale rocky tail.
However, the island is also said to resemble a whale. The part resembling the head is called Benten Island, where the Mutsu Bentenjima Lighthouse stands. Seen from certain angles, the lighthouse and surrounding rocks can look like a whale blowing water from its blowhole, adding to the island’s mysterious appearance.
The head section is known as Benten Island, while the tail section is called Tateiwa. Each part has a different character, and the island’s appearance changes considerably depending on the viewing angle.
An Island Shaped by Volcanic Activity and Erosion
Taijima was formed through powerful geological processes over a very long period of time. The rock mass is believed to have originated from an undersea volcanic eruption approximately eight million years ago. Over countless years, waves, wind, and weathering gradually eroded the rock, creating the distinctive shape that can be seen today.
Nature has continued to shape the island even in relatively recent times. In 1979, part of the central section of Tateiwa, the rocky tail of the island, collapsed. As a result, the tail came to appear as though a section had been bitten away.
Following the collapse, Aomori Prefecture carried out measures to help prevent further weathering and preserve the island’s distinctive form. Today, visitors can still appreciate the unusual landscape created by the interaction of volcanic rock and the forces of the sea.
Viewing Taijima from the Shore
Taijima can be viewed from several locations around the Wakinosawa area. One of the recommended viewpoints is Atagoyama Park, located across the water from the island. The island can also be seen from roads along the coast.
Because the appearance of Taijima changes depending on where you stand, viewing it from different locations can be an enjoyable part of the experience. From one angle it may look like a fish, while from another it can suggest the shape of a whale.
Ushinokubi Rural Park in the Wakinosawa area is another scenic location. From the park, visitors can enjoy a broad view of Mutsu Bay, the surrounding sky and coastline, and Taijima floating offshore. During the azalea season, the colorful flowers provide a beautiful foreground for the blue waters and distant island.
A Rich Marine Environment
The waters around Taijima cover approximately 3.6 hectares and have been designated as a marine park. The clear waters provide a habitat for a wide variety of fish, shellfish, and other marine organisms.
One of the area’s distinctive characteristics is the mixture of marine life associated with both warmer and colder waters. This is influenced in part by the Tsushima Current, which brings relatively warm seawater into the region.
Mutsu Bay itself is also known as an important spawning ground for Pacific cod. The rich marine environment supports a variety of fisheries and is an important part of the natural and economic landscape of the Shimokita Peninsula.
Sightseeing Boat “Yume no Heisei-go”
One of the best ways to experience Taijima is from the water. The sightseeing boat Yume no Heisei-go operates from Wakinosawa Port, allowing visitors to approach the island and enjoy a much closer view of its dramatic cliffs and unusual rock formations.
The sightseeing boat generally operates from April 15 through October 14. From late July through early October, landing on Taijima may also be possible, depending on conditions.
Seeing the island from a boat offers a completely different perspective from viewing it from shore. The rugged rocks, vegetation, and seabirds become much more prominent, allowing visitors to appreciate the scale and texture of this natural formation.
If landing conditions permit, stepping onto the island provides an even closer encounter with its weathered rock surfaces and wild coastal environment. The experience offers a vivid reminder of the powerful natural forces that have shaped the island over millions of years.
The Legend of Taijima
Taijima is not only a geological landmark but also a place associated with an old tragic love story.
According to local legend, the military commander Sakanoue no Tamuramaro, who was appointed Sei-i Taishogun, or “Great General for the Subjugation of the Barbarians,” stayed in the Wakinosawa area during a campaign against the Emishi. During his stay, he fell in love with a local young woman.
Their love, however, was said to have ended tragically, and the young woman died in sorrow. According to the legend, her spirit came to dwell in the sea, and the seaweed growing around Taijima was said to be her hair.
Because of this story, the seaweed around Taijima was traditionally regarded with special respect and was not harvested. The legend remains part of the cultural heritage surrounding the island and adds a human dimension to its otherwise wild natural landscape.
A Landscape Where Nature and Legend Meet
Taijima offers different experiences depending on how it is viewed. From a distance, the island appears as a graceful silhouette floating on the blue waters of Mutsu Bay. From a sightseeing boat, however, visitors can see its rugged cliffs, vegetation, and seabirds at close range.
The changing light, weather, and seasons also give the island different expressions. On a clear day, the contrast between the blue sea, green vegetation, and exposed rock is particularly striking. During the flowering season, the scenery from nearby viewpoints becomes even more colorful.
For overseas visitors, Taijima is an interesting example of how Japan’s natural landscapes and local traditions are often closely connected. A single island can be appreciated as a geological formation, a marine habitat, a scenic landmark, and the setting for an old local legend.
A Special Destination in Mutsu and the Shimokita Peninsula
Located off the coast of Wakinosawa in Mutsu City, Taijima Island combines unusual natural scenery, geological history, marine life, and traditional folklore. Its distinctive shape makes it instantly recognizable, while the surrounding marine environment reveals the richness of Mutsu Bay.
Visitors can enjoy Taijima from coastal viewpoints, admire it from the sightseeing boat, or, when conditions allow, experience the island from close range by landing there. Each perspective reveals a different aspect of this remarkable natural landmark.
For travelers exploring the Shimokita Peninsula, Taijima is a memorable place to discover the connection between the sea, volcanic landscapes, wildlife, and local legends. Its mysterious silhouette floating in Mutsu Bay is one of the scenic images that helps define the character of Wakinosawa.