Kochi W · KuroshioNo.457★★★Open in map →
Tosa Katsuo Tataki
— Bonito seared over a rice-straw fire
In Tosa, bonito is seared over burning rice straw: fast, fierce and only skin-deep. At the roadside station in Kuroshio the straw is lit in front of you, and the fish is landed at the harbour down the road.

Katsuo tataki is the dish Kochi is known for. A fillet of skipjack is held over burning rice straw, which flares hot and dies fast, so the surface chars while the centre stays raw. The pieces are then struck with salt or dressed with a citrus-soy sauce, and that striking is the usual explanation for the name. Saga, in the town of Kuroshio, is a pole-and-line port: crews scatter live sardines and take the fish one at a time by rod. Boats that get back the same day land what the town calls hi-modori katsuo. The roadside station Nabura Tosa-Saga was built around that supply.
Background & history
A story told all over Kochi has a Tosa lord banning raw bonito after cases of food poisoning, so people seared the surface and passed it off as grilled fish. Curators at the Kochi Castle Museum of History say no record of such an order has been found, and the tale is best treated as folklore. The plainer account is that the dish began as crew food, cooked on deck when the catch could not be kept fresh. Nabura Tosa-Saga itself opened in 2014; its name is the local word for a shoal of fish.
What to look for — in walking order

- Tosa-Saga Station
- an unstaffed island-platform stop on the Nakamura Line, the walk-in gateway from Kochi
- The straw-firing counter
- the food court's open hearth, where bundles of rice straw are lit and fillets seared in front of the queue
- The direct sales floor
- same-day bonito, Kuroshio's sun-dried sea salt and local produce, on sale from the morning
- Saga fishing harbour
- the pole-and-line port east of the station, where the town's katsuo comes ashore
How to enjoy it
The straw burns for the middle of the day, so aim to be there between late morning and early afternoon; the sales floor opens earlier and closes later than the food court. Ask for the salt version first. Kuroshio makes its own sun-dried salt in the same town, and salt lets the fat read clearly before a citrus-soy dressing takes over.
How to actually get there
- Kochi Station → Tosa-Saga Station (Ashizuri limited express, through service onto the Tosa Kuroshio Railway, no change of train).
- Tosa-Saga Station → Nabura Tosa-Saga (walk about 10 minutes north along National Route 56).
- At the food court, watch the straw fire, then order the tataki set and try it with salt before the sauce.
- Walk back to the station, or carry on east toward Saga harbour.
- Ashizuri limited express, direct from Kochi Station
- Kochi Station →(JR Dosan Line and Tosa Kuroshio Railway Nakamura Line, Ashizuri limited express, through service)→ Tosa-Saga Station, roughly an hour and a half. There is no change of train. Departures are spaced through the day rather than frequent, so check the time before you set out.
- Return from Tosa-Saga Station
- The same Ashizuri limited express runs back toward Kochi. Services on this section thin out through the evening, so fix your return train before you sit down to eat. Tosa-Saga is an unstaffed station, so allow a few minutes to sort out your ticket.
Before you go
- Cash
- The roadside station is free to walk into; you pay only for what you eat and buy. Card and IC acceptance varies counter by counter at a rural roadside station, so cash is the safe assumption. Rail travel from Kochi needs a ticket plus a limited-express supplement.
- Closing days
- Confirmed at the time of writing: the direct sales floor runs 8:00 to 18:00, and the food court 9:00 to 15:00 on weekdays, until 18:00 on weekends and holidays. The straw firing follows the food court, so a late weekday arrival can miss it entirely.
- Another way
- Coming from the west, the same Ashizuri limited express reaches Tosa-Saga from Nakamura. By car, the roadside station stands directly on National Route 56, the coast road through southwestern Kochi.
- After you get off
- From Tosa-Saga Station, walk about 10 minutes north; the roadside station is on National Route 56, on the inland side of the road.