Photo by GeoJango Maps on Unsplash
It sounds like a contradiction: a UNESCO World Natural Heritage site that is technically part of Tokyo, yet sits roughly 1,000 km south of the capital in the Pacific, with no airport and no way in except a ferry that takes a full day and night. The Ogasawara Islands (also called the Bonin Islands) are one of the strangest entries on any Tokyo itinerary — and one of the most rewarding if you have the time and patience to reach them. This guide covers exactly what that takes.
Why Ogasawara Is Unlike Anywhere Else in Tokyo
Ogasawara Village is administratively part of Tokyo Metropolis, but its main inhabited island, Chichijima, feels closer to a remote South Pacific outpost than anything in the Kanto region. The islands were never connected to the Asian mainland, so plants and animals evolved in isolation — earning the nickname “the Galápagos of the Orient” and UNESCO World Natural Heritage status in 2011. Expect electric-blue water locals call “Bonin Blue,” green sea turtles, humpback whales in winter, and a village of around 2,000 people with one main road, a handful of shops, and no convenience store chains.
Getting There: The Ogasawara Maru Ferry
There is exactly one way to reach Ogasawara: the Ogasawara Maru, operated by Ogasawara Kaiun, sailing from Takeshiba Pier in central Tokyo (a short walk from Takeshiba Station on the Yurikamome or Oedo Line) directly to Futami Port on Chichijima. The crossing takes about 24 hours each way — no airport exists on the islands, and plans to build one have been debated for decades without resolution, partly over environmental concerns tied to the UNESCO listing.
The ferry doesn’t run daily. It typically departs Tokyo around once a week (roughly 5–6 round trips a month), and it stays docked at Chichijima for 3 to 6 nights before heading back — so your trip length is dictated by the ship’s schedule, not your own preference. Check the exact calendar on Ogasawara Kaiun’s website before booking anything else, including flights into Tokyo.
Fares vary by cabin class and season, but as a rough guide: shared 2nd class one-way runs roughly ¥22,000–25,000, special 2nd class (fewer bunks per room) around ¥33,000, and 1st class cabins from roughly ¥55,000 upward, with suites higher still. These are approximate — confirm current pricing directly with Ogasawara Kaiun, since fares are adjusted periodically. Tickets for Obon, New Year, and Golden Week sailings sell out weeks in advance.
If you’ve never done a long-haul ferry in Japan, the shorter crossing described in Hakodate’s easy ferry access from Honshu is a useful comparison of scale — Ogasawara’s 24 hours is in an entirely different category, more cruise ship than commuter ferry, with a cafeteria, vending machines, and an open deck.
How Long You Actually Need
Budget a minimum of 6 days, realistically closer to a week: a full day each way on the ferry, plus at least 3 nights on Chichijima to make the trip worthwhile. Because the ship only turns around on its own schedule, you cannot shorten the stay without skipping the islands altogether or paying for a flight-free alternative (there isn’t one). This makes Ogasawara a poor fit for anyone with a tight Tokyo itinerary — it’s the opposite of the easy half-day escapes covered in guides like Mount Takao’s day trip or Kawagoe’s “Little Edo” outing. If you only have a few spare days in Tokyo, those are the better call; Ogasawara is for travelers building an entire week or more around the islands themselves.
Best Time to Visit
Humpback whales migrate through Ogasawara’s waters roughly from late December through April, and whale-watching boat tours run daily from Chichijima during that window — this is the single biggest draw for most visitors. Water visibility and diving conditions are generally best from late spring through early autumn (May–October), when the sea is warmer. Avoid planning around August to October if possible: this is peak typhoon season, and ferry departures (in both directions) are sometimes delayed or cancelled with little notice, which can strand you on the island or in Tokyo for days. Summer (July–August) is also hot, humid, and the most crowded with Japanese domestic tourists on school holidays.
What to Do on Chichijima and Hahajima
Chichijima’s village, Omura, is walkable and has a few guesthouses, dive shops, and simple restaurants near the port. Must-do activities include:
- Whale watching or dolphin swimming (half-day boat tours, roughly ¥8,000–13,000 depending on operator and season)
- Snorkeling or diving in Bonin Blue water with excellent coral and fish variety
- A guided tour to Minamijima, an uninhabited islet with a stunning lagoon — visitor numbers are capped and a licensed guide is mandatory to protect the ecosystem
- Hiking short trails to lookout points like Mt. Chuo or Jinyama
A second inhabited island, Hahajima, is about two hours further by the smaller Hahajima Maru ferry from Chichijima, running only a few times a week — worth it if your schedule allows an extra 2–3 days for a quieter, even less-developed island experience.
Where to Stay and What to Budget
Accommodation on Chichijima is limited to a few dozen small guesthouses and pensions — there are no major hotel chains. Budget options run roughly ¥5,000–8,000 per person per night for a basic guesthouse room; mid-range pensions with meals included run ¥10,000–15,000; there’s no true luxury tier on the island itself. Book lodging as early as you book the ferry, since rooms sell out fast around whale season and holidays. Before departure, it’s worth booking a reliable, affordable Tokyo hotel near Takeshiba for the night before an early sailing — the reliable chains compared in Toyoko Inn, APA, and Dormy Inn all have locations within a short taxi ride of the pier.
Common Mistakes to Avoid
- Not checking the ferry schedule first. Build your entire Japan trip dates around the Ogasawara Maru’s departure calendar, not the other way around.
- Underestimating cash needs. ATMs are scarce (Japan Post Bank has one on Chichijima) and many small shops don’t take credit cards — bring enough yen.
- Skipping seasickness precautions. Twenty-four hours is a long time to feel queasy; bring medication even if you don’t normally need it.
- Assuming you can do it in under a week. There is no shortcut — plan the full round trip before committing.
- Forgetting weather risk. Have a backup plan (and flexible flights home) if traveling during typhoon season, since return sailings can be delayed.
Ogasawara isn’t a convenient add-on to a Tokyo trip — it’s a destination that demands you build a trip around it. For travelers with the time, it delivers scenery and wildlife encounters unlike anything else within Tokyo’s administrative borders.