Aurora Icebreaker, Abashiri | Crossing a Sea of Drift Ice — Once in a Lifetime
The Aurora icebreaker departs from Abashiri Port, pushing through the drift ice that blankets the Sea of Okhotsk. The sound and vibration as the bow breaks through the ice is something no words can describe. Crystal-clear ice floats like diamonds in the sunlight. But buy your tickets in advance — showing up on the day can mean waiting hours.
🚩 NTJ Firsthand Travel Story
I’d booked the tickets and checked the departure time three times, and it still didn’t feel real.
The icebreaker “Aurora” leaves from Abashiri Port; January to March is drift-ice season, when the ice of the Sea of Okhotsk drifts down from Siberia and freezes the whole sea white. It doesn’t sail every day — it depends on how much ice there is, the weather, the sea state. Buy tickets in advance; showing up to buy on the spot really can mean waiting several hours.
As the ship leaves port, the sea is still just an ordinary sea. A few minutes later, white shards of ice start appearing on the surface, more and more, denser and denser, and then the bow begins to shove hard through them. The sound and the vibration are impossible to put into words.
The ice splits open at the bow and parts to either side, every piece of it clear. With the sun on it, it’s a blue-white, like diamonds drifting on the sea.
Standing on deck and looking out, everything within sight is white. Now and then a Steller’s sea eagle stands on a floe, utterly indifferent, just watching your ship pass by.
The Story of This Place
Start with the ship under your feet. The Aurora was the world's first icebreaker built purely for drift-ice sightseeing — completed in 1990 and running out of Abashiri Port from 1991. Its design came from Nippon Kokan, the same firm behind Japan's Antarctic research vessel Shirase, and the hull was built at Narasaki Shipyard in Muroran, Hokkaido: 491 tons, about 45 meters long. It once had a sister ship, the Aurora 2, launched in 1994 and in service from 1995, which ran alongside it for over two decades before retiring in March 2022.
Stranger still is where the ice itself is born. It doesn't freeze off Abashiri at all — it starts as fresh water spilling from the Amur River on the China–Russia border, the largest river in the Far East. That water freezes, then drifts south across the Sea of Okhotsk, growing as it goes, until it reaches the waters off Abashiri at roughly 44°N — one of the southernmost places in the Northern Hemisphere where sea ice reaches the shore. The Abashiri weather station has logged the ice's arrivals and departures every year since 1959. And on the left bank of the Abashiri River mouth sits a nationally designated historic site, the Moyoro Shell Mound: discovered in 1913 by Kioe Yonemura, it's the roughly 1,300-year-old settlement of the \"hunters of the icy sea\" — the Okhotsk culture — complete with dwellings, graves, and shell mounds, and even a distinctive burial custom of placing a pot over the head of the dead. Proof that people were living off this frozen sea a thousand years ago.
As for the legends — it's said that Abashiri's old name was \"Chipashiri,\" Ainu for \"the rock (island) we found.\" As the story goes, a white standing rock shaped like a person in a straw hat rose from the lake and riverbank, and people offered inau (ritual wooden wands) to worship there. (Honestly, though: the wistful version where a white swan is a girl reborn, crying \"Chipashiri, Chipashiri\" as it flies away, is a modern folk tale written by that same Kioe Yonemura — not an ancient tradition, so don't take it as history.) It's also said that the Ainu of the Okhotsk coast revered Repun Kamuy, a supreme sea god in the form of an orca, who carried whales and other prey to the people and brought good catches — not a legend unique to the drift ice, but the spiritual undertone of this sea across the ages. So when you stand on deck and hear the hull crunch the ice apart, that white sea in front of you is really one long waterway drifting thousands of kilometers from the Amur, and the story of people who have lived at the edge of a frozen sea for a thousand years.
Drift-ice season and sailings
The drift ice usually reaches the waters off Abashiri in late January; February is when it’s densest, and it starts melting and retreating in mid-March. The timing varies slightly year to year — check that year’s drift-ice forecast at the Okhotsk Ryu-hyo (Drift Ice) Museum. The Aurora runs 2–3 sailings a day, each about 60–70 minutes. Departure and return times shift with ice conditions, and sailings are sometimes cancelled in bad weather or when there’s too little ice.
Booking and fares
Booking ahead via the official site is strongly recommended; in peak season (February), buying on the spot can mean a wait of several hours or a same-day sell-out. Tickets are about ¥3,300 for adults and ¥1,650 for children. Board at Abashiri Port 30 minutes before departure. Official site: ms-aurora.com (Japanese); credit cards accepted. You can also book via Klook, which has an English interface.
What to wear
The wind on deck is brutally cold — the wind chill can drop below –20°C. Recommended: a down jacket with a windproof outer shell, a warm hat, a neck gaiter, windproof gloves and insulated boots. Tuck a hand warmer into each boot. There is heating inside, but all the best moments are out on deck, so you can’t just stay in the cabin.
Other spots in Abashiri
Since you’re in Abashiri, you can also visit: the Abashiri Prison Museum (Japan’s most famous former prison, an outdoor exhibition site, about 2–3 hours), the Okhotsk Ryu-hyo (Drift Ice) Museum (an indoor display where you can actually touch the ice, about an hour), and the Tentozan Observatory (a full view of the Sea of Okhotsk on a clear day). These make a full day alongside the icebreaker. Hokkaido itineraries and Klook activities:
A tip on booking the icebreaker
In peak season (January–March), online slots fill fast once they open; the official site starts accepting bookings for the following year each December, so it’s worth grabbing a slot early.