Why the Naruto whirlpools are worth timing your trip for
The Naruto whirlpools, Naruto no uzushio, are one of Japan's great natural spectacles. The tide in the Seto Inland Sea and the Pacific rises and falls at different times, so for several hours twice a day water pours through the narrow Naruto Strait like a river. The fastest current runs down the middle of the channel, the water near the shores moves more slowly, and where they meet, spinning eddies form, grow and collapse in a few seconds.
The whirlpools have been famous for centuries. Utagawa Hiroshige painted them in the 1850s, and today the Ōnaruto Bridge, which carries the expressway from Awaji Island to Shikoku, spans the strait right above them. The sight changes with the moon: around new and full moon, during spring tides, the current is strongest and the whirlpools are biggest.
For a Japanese learner, Naruto is an exercise in numbers and time. Tide tables, boat departures and viewing times are everywhere, and asking when, how long and how many people is most of the conversation you will need.
Getting there: Naruto Station, Naruto Park and the highway buses
The whirlpools are seen from Naruto Park, Naruto Kōen, on the northern tip of Naruto, about seven kilometres from the city centre. By train, take the JR Kōtoku Line from Tokushima or Takamatsu to Ikenotani and change to the JR Naruto Line for Naruto Station, the terminus. From the station, buses run to Naruto Park in about 20 minutes, roughly once an hour.
From Osaka and Kobe, highway buses are faster than trains. Buses heading for Tokushima stop at Naruto Kōen-guchi inside the park, but in the opposite direction they do not, so to return towards Osaka you walk to the Kōsoku Naruto stop on the expressway. The small high-speed boats leave from Kameura fishing port, behind the Ōtsuka Museum of Art, and the larger sightseeing boats from a pier a little further from the park, with buses between them.
| Japanese | Romaji | Meaning |
|---|---|---|
| 鳴門公園行きのバスは何番乗り場ですか。 | Naruto Kōen-yuki no basu wa nanban noriba desu ka. | Which stop does the bus to Naruto Park leave from? |
| 渦の道にはどう行けばいいですか。 | Uzu no Michi ni wa dō ikeba ii desu ka. | How do I get to Uzu no Michi? |
| 観潮船の乗り場はどこですか。 | Kanchōsen no noriba wa doko desu ka. | Where do the whirlpool boats leave from? |
| 大阪行きの高速バスはどこで乗れますか。 | Ōsaka-yuki no kōsoku basu wa doko de noremasu ka. | Where can I catch the highway bus to Osaka? |
| ここから歩いて何分ぐらいですか。 | Koko kara aruite nanpun gurai desu ka. | About how many minutes on foot from here? |
Boats, Uzu no Michi and Naruto Park: what you will see
Two operators run whirlpool boats from the Shikoku side. Uzushio Kankōsen runs the large Wonder Naruto, with a high deck that gives a good view down into the whirlpools, and the Aqua Eddy, a smaller boat with underwater viewing windows that needs an advance reservation. Uzushio Kisen runs small, fast boats from Kameura fishing port that sit low on the water beside the swirls; it takes cash only. Rides last about 20 to 30 minutes.
Uzu no Michi is a walkway built into the Ōnaruto Bridge. You walk about 450 metres out over the sea to an observation room 45 metres above the strait, where glass panels in the floor let you look straight down at the current. The rest of Naruto Park has viewpoints, a museum about the bridge and the whirlpools, and the Ōtsuka Museum of Art.
- Kanchōsen (観潮船): the whirlpool sightseeing boats, the closest view.
- Uzu no Michi (渦の道): the walkway under the bridge with glass floor panels 45 metres above the sea.
- Ōnaruto-kyō (大鳴門橋): the suspension bridge between Shikoku and Awaji Island.
- Senjōjiki Tenbōdai (千畳敷展望台): a viewpoint in Naruto Park looking along the bridge and over the strait.
- Eska Hill (エスカヒル鳴門): a hilltop viewpoint reached by a 68-metre escalator.
- Ōnaruto-kyō Kakyō Kinenkan Eddy (大鳴門橋架橋記念館エディ): a museum about the bridge, the strait and the whirlpools.
- Ōtsuka Kokusai Bijutsukan (大塚国際美術館): the Ōtsuka Museum of Art, full of full-size ceramic reproductions of Western masterpieces.
Words on the signs: tides, boats and viewing times
Every ticket office in Naruto Park posts the day's tide information, and it is written in Japanese first. The key line is 潮流最速時, the time of the fastest current; the whirlpools are usually best for about an hour and a half either side of it. Boards may also mark days when especially large whirlpools are expected.
| Word | Reading | Meaning |
|---|---|---|
| 渦潮 | uzushio | Tidal whirlpool |
| 渦の道 | Uzu no Michi | The walkway inside the bridge |
| 観潮船 | kanchōsen | Whirlpool sightseeing boat |
| 潮見表 | shiomihyō | Tide table |
| 潮流最速時 | chōryū saisokuji | Time of the fastest current |
| 見頃 | migoro | Best time to see |
| 乗り場 | noriba | Boarding place |
| 大鳴門橋 | Ōnaruto-kyō | The Ōnaruto Bridge |
| 要予約 | yō yoyaku | Reservation required |
Japanese for boat tickets and the tide table
At the boat counters you buy a ticket for the next departure. If the whirlpools are not at their best yet, staff may suggest a later boat, so it helps to understand times and phrases such as mada hayai desu, it's still early. On the small boats, staff may warn you about spray, which matters on windy days.
At Uzu no Michi you can buy tickets in advance online to avoid queues, or at the entrance. The official site posts the day's best time and a rating of how well the whirlpools are expected to appear.
| Japanese | Romaji | Meaning |
|---|---|---|
| 今、渦潮は見えますか。 | Ima, uzushio wa miemasu ka. | Can the whirlpools be seen now? |
| 次の船は何時に出ますか。 | Tsugi no fune wa nanji ni demasu ka. | What time does the next boat leave? |
| 船は何分ぐらいですか。 | Fune wa nanpun gurai desu ka. | How many minutes is the boat ride? |
| 水しぶきはかかりますか。 | Mizushibuki wa kakarimasu ka. | Will we get splashed? |
| 現金だけですか。 | Genkin dake desu ka. | Is it cash only? |
| アクアエディは予約が必要ですか。 | Akua Edi wa yoyaku ga hitsuyō desu ka. | Do I need a reservation for the Aqua Eddy? |
| 明日の見頃は何時ごろですか。 | Ashita no migoro wa nanji goro desu ka. | Around what time is the best viewing tomorrow? |
Etiquette, timing and practical tips
Naruto is easy to visit once you have the timing right. Plan backwards from the tide table, not forwards from your breakfast.
- Check the tide table for your date before you book transport, and aim to arrive at least an hour before the fastest current.
- Spring tides, around new and full moon, bring the largest whirlpools; on neap tides the sea can be almost calm.
- Boats can be cancelled in rough weather; listen for kekkō, cancelled, and have Uzu no Michi as a backup.
- Wear something warm and windproof on the boats and the walkway, even in spring.
- At Uzu no Michi, do not jump on the glass floor panels, and let others take their turn at the best windows.
- Cycle path construction on the bridge has caused some inconvenience at Uzu no Michi; check the official notices before you go.
- Try local specialities while you wait: Naruto wakame seaweed and Naruto kintoki sweet potatoes are sold around the park.
Practise the boat counter before you go
At Naruto the most useful conversation happens at the ticket counter. First you ask when the whirlpools are at their best today, then you buy your tickets. The attendant's answer uses shukkō, departure of a ship, a word you will also hear at ferry terminals all over Japan.
Say the four lines aloud until the times come naturally. Then open Unihongo, choose the Sightseeing topic and ask your AI Sensei to play the attendant, giving you a different time each round, so you practise catching numbers like jūgofun-go, a quarter of an hour from now, and yoji goro, around four.
| Japanese | Romaji | Meaning |
|---|---|---|
| 今日、渦潮がよく見えるのは何時ですか。 | Kyō, uzushio ga yoku mieru no wa nanji desu ka. | What time can the whirlpools be seen best today? |
| 午後二時ごろが見頃ですよ。 | Gogo niji goro ga migoro desu yo. | Around two in the afternoon is the best time. |
| 次の船、大人二枚お願いします。 | Tsugi no fune, otona nimai onegai shimasu. | Two adults for the next boat, please. |
| 十五分後に出航します。 | Jūgofun-go ni shukkō shimasu. | It departs in fifteen minutes. |
Official information
Each operator publishes the daily tide table and best viewing times on its own site, along with timetables, reservation details and closures. Check them for your date before you go.