Iko Pier

Iko Pier: A 354-Meter Walk into the Turquoise Sea of Kuroshima

Stretching 354 meters straight out into the crystalline waters of Kuroshima Island, Iko Pier (伊古桟橋) is one of the most breathtaking and photogenic spots in the Yaeyama Islands of Okinawa. Registered as a National Tangible Cultural Property in 2005, this historic stone-and-concrete pier offers visitors the unforgettable sensation of walking on water—especially at high tide, when the sea surface rises to nearly the same level as the pier's surface. Once a vital lifeline connecting the island's fishing community to the outside world, Iko Pier now stands as a serene monument to Kuroshima's heritage and a beloved destination for travelers seeking unspoiled beauty.

Historical Background

Iko Pier is located on the northern coast of Kuroshima, a small coral island in the Yaeyama archipelago often called "Heart Island" for its distinctive shape. The pier sits near the former Iko settlement, which once thrived with around 40 households engaged primarily in fishing.

The original pier was a wooden structure built in 1924 (Taisho 13). However, it was destroyed by a typhoon in 1933 (Showa 8). Two years later, in 1935 (Showa 10), the current pier was constructed as a prefectural subsidy project, using stone masonry and concrete with a mortar-finished surface. The pier features four mooring bollards and a cargo loading area at its tip, designed to support the island's fishing industry.

As Kuroshima's main port shifted to the current Kuroshima Port on the island's northwest side, Iko Pier gradually fell out of active use. Today, the Iko settlement has dwindled to just a few households, but the pier remains as a powerful reminder of the community's maritime past.

Why It Was Designated a Cultural Property

Iko Pier was registered as a National Registered Tangible Cultural Property (Building) on December 26, 2005, under registration number 47-0010. The Agency for Cultural Affairs recognized the pier as a large-scale structure that supported the modernization of the island's fishing industry. Its stone-and-concrete construction, impressive 354-meter length, and 4.25-meter width make it a significant example of early Showa-era civil engineering in the remote island regions of Okinawa. Together with Nishi Pier on neighboring Taketomi Island, Iko Pier is one of only two registered cultural property piers in the Yaeyama Islands.

Highlights and Attractions

The greatest charm of Iko Pier lies in its ever-changing scenery. At high tide, the emerald-green sea rises close to the pier's surface, creating the magical illusion of walking on water. The 180-degree panorama of ocean stretching in every direction—with views of Ishigaki Island, Kohama Island, and Iriomote Island on the horizon—is simply spectacular.

At low tide, the extremely shallow reef flat surrounding the pier is exposed, revealing a completely different landscape of tidal pools and marine life. Visitors can often spot colorful tropical fish and, in recent years, even sea turtles from the pier.

The pier is especially popular for sunrise viewing, when the early morning light paints the sky and sea in vivid shades of orange and pink. Cycling to the tip of the pier is another popular activity, giving the exhilarating feeling of riding across the open ocean.

Note that there are a couple of collapsed sections along the pier caused by past typhoons, so visitors should watch their footing carefully.

Visitor Information

Kuroshima is accessible by ferry from Ishigaki Port, with the journey taking approximately 25 to 30 minutes. From Kuroshima Port, Iko Pier is about a 15-minute bicycle ride or a 25-minute walk heading east along the northern coast. Most visitors rent bicycles at or near the port, which is the most convenient way to explore the island.

There is no admission fee to visit Iko Pier, and it is open at all times. For the best experience, check the tide tables in advance and aim to visit during high tide on a clear day. The pier faces north, making it an ideal spot for watching the sunrise.

Surrounding Attractions

Kuroshima, with a human population of around 200 but over 2,000 cattle, offers a wonderfully laid-back atmosphere. Nearby attractions include:

• Kuroshima Observatory: A spiral-shaped observation tower near the center of the island offering panoramic views of the surrounding islands and pastoral scenery.
• Japan's 100 Best Roads Monument: Marking Prefectural Route 213, which runs through the traditional village with coral stone walls and red-tiled roofs on either side.
• Nakamoto Beach: A beautiful natural beach on the west coast known for excellent snorkeling among coral reefs.
• Kuroshima Research Station: Operated by the University of the Ryukyus, this facility focuses on sea turtle conservation and occasionally opens to visitors.