Kaichu-doro | Okinawa's Stunning Ocean Highway
Many travelers visiting Okinawa choose to explore the island by renting a car and driving. However, using a car simply as a tool to get from one sight to another is truly a missed opportunity. Okinawa is home to numerous breathtaking scenic coastal roads that take your road trip to the next level—and the "Kaichu-doro" (Ocean Road) in Central Okinawa is undoubtedly one of the best drives on the island.
Today, I'll be sharing the highlights, roadside stations, essential travel tips, and a comprehensive guide to the gorgeous neighboring outer islands along Kaichu-doro for an unforgettable coastal cruise!
(Stretching 4.7 kilometers across the shallow sea, Kaichu-doro is not just a causeway bridge connecting islands, but a beloved sightseeing destination where drivers can experience the magical sensation of gliding across the ocean.)
◎ Essential Pre-Trip Know-How
Before punching the coordinates into your GPS, keep this crucial tip in mind: Kaichu-doro's scenery changes dramatically with the tides! During high tide, you'll experience the classic, postcard-perfect illusion of cruising right over deep turquoise waters. At low tide, large mudflats, sandbanks, and tidal zones are exposed; while the sprawling ocean views aren't quite as vibrant, the perk is that you can step down and wander along the open sandy flats. Choose your timing based on what you prefer to see!
◎ Check Tide Tables: 海天気.jp
(At the entrance of Kaichu-doro stands the bright red cable-stayed Henza Kaichu Bridge. Seeing this striking red structure signals that you've officially entered the sea road!)
◎ Roadside Station: Umi no Eki Ayahashikan
As you cruise down Kaichu-doro, halfway through you'll spot a distinct ship-shaped building. This is the must-stop intermediate rest hub for all road-trippers: "Umi no Eki Ayahashikan" (Roadside Station Ayahashi). Aside from being an ideal spot to stretch your legs and take photos, you can also savor local Okinawa tempura, Blue Seal ice cream, and browse an extensive collection of Okinawan souvenirs to recharge your energy!
◎ Address: 4 Yonashiro Yahira, Uruma City, Okinawa Prefecture, Umi no Eki Ayahashikan (MAPCODE: 499 576 274*55)
◎ Parking: Approx. 250 spots (Free)
◎ Official Website: 海の駅 あやはし館
(While most visitors immediately start taking photos right from the parking lot, I highly recommend climbing up the pedestrian overpass spanning the roadway. From here, you can capture the straight road cutting through emerald seas, with the distant red bridge framed in the background for a far superior vantage point.)
(The roadside station sells plenty of Okinawan snacks, souvenirs, and local bites. However, if you are looking for an extensive souvenir shopping spree, the selection here is somewhat modest compared to downtown Naha, which makes sense given its role as a highway rest stop.)
(I personally love Blue Seal ice cream, so I couldn't resist grabbing a scoop as soon as I walked in! Right next to it is a food stall serving Okinawa's signature seaweed tempura—reminiscent of the famous tempura stalls on Ojima Island—perfect for satisfying savory cravings.)
(The shallow, breezy waters around Kaichu-doro serve as a popular hub for stand-up paddleboarding and windsurfing. In the summer, you'll frequently see colorful sails gliding across the bay. If you're looking for an active way to enjoy Okinawa's ocean, definitely give it a try!)
*Note: If you only plan to stop by the roadside station for a quick snack and photos, 30 minutes is plenty of time. However, if you intend to explore the outer islands introduced below, I strongly recommend setting aside half a day or even a full day.
Let's keep driving! Kaichu-doro functions primarily as the arterial highway connecting four beautiful outer islands. After passing the roadside station, you'll first cross into Henza Island. However, Henza is primarily an oil storage terminal facility with few tourist sights, so most travelers drive straight through. The real treasures lie just beyond: Hamahiga Island, Miyagi Island, and Ikei Island. Let's explore these three charming islands one by one!
1. Hamahiga Island
Hamahiga Island is regarded as a sacred spiritual ground by Okinawans. According to Ryukyuan mythology, the creator gods Amamikyu and Shinerikyu once lived here. Unlike bustling tourist spots, Hamahiga is refreshingly uncommercialized, retaining countless traditional Okinawan stone walls and red-tile roof residences, enveloped in a tranquil and rustic atmosphere.
My top recommendation here is dining at Teirabui (古民家食堂 てぃーらぶい), an award-winning restaurant housed inside a 100-year-old traditional folk dwelling. Sitting on tatami mats, savoring an authentic "Nakami-jiru" (pork offal soup) set meal while listening to gentle Sanshin melodies makes you feel as though you've traveled back a century in time. It's an absolute must for cultural travelers!
(Arriving at Hamahiga Island, you're greeted by the bridge spanning over gorgeous turquoise waters.)
(Hamahiga Island is also home to the tomb of Ryukyu's creator goddess Amamikyu, a revered spiritual landmark in local belief.)
2. Miyagi Island
Continuing north along the main road from Henza Island leads to Miyagi Island, featuring more elevated, undulating terrain. The island's signature highlight is Kafu Banta (Happy Cliff), located right on the grounds of the Nuchimasu Salt Factory. From this coastal clifftop, you can gaze down at an astonishing gradient of emerald green, Tiffany blue, and deep sapphire waters. While here, be sure to stop by the salt factory to pick up internationally patented Nuchimasu sea salt, which makes a fantastic gourmet souvenir!
◎ Address: Nuchimasu Tourist Salt Factory, Yonashiro, Uruma City, Okinawa Prefecture (MAPCODE: 499 674 664*37)
◎ Admission: Free
◎ Parking: Approx. 50 spots (Free)
◎ Official Website: ぬちまーす観光製塩ファクトリー
(Besides the hypnotic ocean view, from Kafu Banta you can also look out across the horizon toward Hamahiga Island as well as Ikei Island, which we'll visit next.)
3. Ikei Island
The ultimate terminus of this self-drive route along Kaichu-doro is Ikei Island. The island's crown jewels are two spectacular beaches: Ikei Beach and Odomari Beach. Both are celebrated for exceptional water clarity and are fantastic for snorkeling and water sports. These beaches are popular hidden gems favored by local Okinawans—if you're looking for an off-the-beaten-path beach paradise loved by locals, you can't miss this!
◎ Address: Odomari Beach, Yonashiro Ikei, Uruma City, Okinawa Prefecture (MAPCODE: 499 794 696*67)
◎ Admission: Adults 500 JPY; Children 300 JPY (Water sports equipment rental extra)
◎ Parking: Approx. 100 spots (Included in admission fee)
◎ Official Website: 大泊ビーチ
(Driving through Miyagi Island, you will cross an eye-catching red bridge leading straight to Ikei Island at the end of the road. Two stone Shisa lion statues stand guard at the bridge's entrance.)
(Okinawa has many drive-accessible outer islands, such as Sesoko Island, Senaga Island, Ojima Island, and Kouri Island. Ikei Island is one of these gems, brimming with peaceful and untouched island village life.)
(The island is also home to the small Nakabaru Ruins, a prehistoric village archaeological site. Although modest in scale, it's fascinating to ponder how ancient ancestors thrived on such a remote offshore island millennia ago.)
(Wondering which beach to choose? If you prefer full amenities, beach umbrellas, and family-friendly recreation right beside the bridge, Ikei Beach is your best bet. However, if you are seeking unmatched water transparency and abundant fish for snorkeling, I strongly urge you to drive a bit further into the island to Odomari Beach.)
That concludes our tour of Kaichu-doro and its surrounding islands! This region is undeniably one of Okinawa's premier self-drive cruising zones. Most attractions here are free of charge, making it perfect for a leisurely, carefree drive where you can pull over whenever a scenic spot catches your eye. If there's any drawback, it's that views rely heavily on clear weather, it lies somewhat distant from western coast resort hubs, and some village roads can be rather narrow—so take your time and drive with care. All in all, for travelers eager to experience an authentic and deeper side of Okinawa, this drive is an absolute winner!