Sado driving guide: Onogame, Senkaku Bay, the Gold Mine, Osado Skyline and map

Sado is an island in Sado City, Niigata Prefecture. Two car-ferry routes serve it: Niigata Port to Ryotsu Port and Naoetsu Port to Ogi Port. Onogame and Futatsugame are in the north of the island, Senkaku Bay and Sado Gold Mine are in the west, and the Osado Skyline runs across the mountains.

This guide follows a day from Ryotsu Port around the north of the island and through Aikawa, returning to Ryotsu Port over the Osado Skyline, with roads and places to stop listed below.

Map of Sado

The line follows the full-day route from Ryotsu Port past Onogame and Senkaku Bay to the Osado Skyline below. Numbers mark the stops: green for scenery and nature, blue for roadside stations. Tap a marker to see its name.

Recommended drives

First visit: Ryotsu Port past Onogame and Senkaku Bay to the Osado Skyline in a day

Leave Ryotsu Port and stop at Michi-no-Eki Ai-Port Sado, a roadside station. Follow the Sado Isshu Line around the northern tip of the island to Futatsugame and Onogame. Head south along Sotokaifu, stopping at Hiranezaki and Senkaku Bay Ageshima Park. From Sado Gold Mine, climb the Osado Skyline to Hakuundai. On the way back, descend to the Kanai side and pass Toki Forest Park on the way to Ryotsu Port.

The route is about 125 km, with around 3 hours 45 minutes of driving. Distance and time are calculated from map data and exclude traffic.

Sado's roads are narrower than those on the mainland, and there are many tunnels.

When the Osado Skyline is closed

In 2025 the Osado Skyline closed for winter on 14 November at 15:00. The 2026 closure date had not been announced on 1 November. Once it closes, you cannot go up to Hakuundai, and the Hakuundai visitor centre also closes.

After the closure, return from Sado Gold Mine to Ryotsu Port on Route 350. The full route is then about 116 km, with around 3 hours 30 minutes of driving. Toki Forest Park drops off the route.

Plan around the return ferry

From 13 October to 31 December, car ferries leave Ryotsu Port at 05:30, 09:15, 12:45, 16:05 and 19:30. On the way out, the 06:00 sailing from Niigata reaches Ryotsu at 08:30.

Sunset in Niigata is at 16:46 on 1 November and 16:33 on 15 November.

Roads you can drive

Jetfoils do not carry cars. If you are taking a car, use the car ferry.

Places to stop

Views and nature

Numbers match the map.

Roadside stations

This is the island's only roadside station.

Best seasons and crowds

Sunset in Niigata is at 16:46 on 1 November, 16:33 on 15 November and 16:25 on 1 December.

Busy places and times

Many people visit Onogame during the daylily season. The car park holds 20 cars.

Roads and restrictions checked on 2 November 2026

• Sado Jukan Line, Irikawa–Donden Sanso: fully closed by a landslide since 22 October, until further notice.
• Akadama–Ryotsuko Line at Shimokuji: fully closed by flooding since 21 October, until further notice.
• Tada–Minagawa–Kanai Line at Hamakawachi (near Momijiyama): roadworks through 20 December. Small vehicles can pass on weekdays at 09:30–09:45, 10:45–11:00, 12:00–13:00, 14:10–14:25, 15:35–15:50 and after 17:00. On weekends and holidays they can pass all day.
• Shizudaira–Nishimikawa Line at Nishimikawa: fully closed since 11 August 2025 after heavy rain damaged the road shoulder.
• Shizudaira–Nishimikawa Line at Shimokuroyama: fully closed since 7 August 2025 after heavy rain damaged the road shoulder.
• Sawasaki–Kinoura Line at Ogi-Kinoura: fully closed since 7 August 2025 after heavy rain damaged the road surface.
• Sawasaki–Kinoura Line at Itsubo: fully closed since 6 August 2025 after a slope collapsed in heavy rain.
• City road Ogi Peninsula Loop: fully closed until further notice after heavy rain damaged the road shoulder.

Getting there and fuel

Online reservations for sailings carrying a car open at 00:00 on the same date two months before travel and close at 21:00 the day before. Membership registration is required. Campervans and vehicles under 3 m long must be booked by telephone (025-245-7001).

Scheduled flights to Sado Airport have been suspended since 1 April 2014.

Filling stations are scarce along the coast, so refuel early. In the north, Idemitsu Washizaki Service Station at Washizaki opens 07:00–18:00 Monday to Saturday and on holidays; it is closed on Sundays. Wada Shokai Sado station, about ten minutes by car from Ryotsu Port, opens 08:00–18:00 and is closed on Sundays and holidays.

If you don't have a car

Use the Niigata rental-car listings to find a pickup location. Before booking, check the driving-permit requirements.

Frequently asked questions

How do I take a car to Sado?

Take the car ferry. Niigata–Ryotsu takes 2 hours 30 minutes. Naoetsu–Ogi takes 2 hours 40 minutes and runs through 23 November in 2026.

Where should I drive with one day on Sado?

From Ryotsu Port, go to Futatsugame and Onogame. Stop at Senkaku Bay Ageshima Park and Sado Gold Mine, and return over the Osado Skyline. The route is about 125 km, with around 3 hours 45 minutes of driving.

Until when can I drive the Osado Skyline?

The 2026 closure date had not been announced on 1 November. In 2025 it closed on 14 November at 15:00, and it reopened on 22 April 2026 at 13:00.

Can I fly to Sado?

Scheduled flights to Sado Airport have been suspended since 1 April 2014.

Can I buy fuel on Sado?

Yes, but stations are scarce along the coast and the one at Washizaki closes on Sundays. Refuel before heading north.

Nearby areas and guides

• Niigata driving and travel guide
• Winter road closures in Japan