There is an island in Japan's largest lake with a National Treasure gate on it, a goddess enshrined inside it, and not one single bed — because nobody, not even the people who run it, is allowed to stay the night.
The boat from Nagahama clears the harbor wall and the far shore drops away, and for twenty-five minutes there is nothing out the window but grey-green water and the hazy outline of mountains on three sides. Lake Biwa does not look like a lake. It looks like you have gone to sea.
Then a shape appears ahead that is clearly not a sandbank or a buoy: a steep little mountain, thick with trees, sitting alone in all that water with absolutely nothing else near it. As the boat closes in, you start to notice the shape has edges that are not natural — a red gate here, a stone wall there, a roofline tucked into the slope.
You step off onto a stone jetty that takes up most of the island's only flat ground, and immediately in front of you is a flight of stone steps going straight up into the trees. There is nowhere else to go. The island is the temple, and the temple is the island.
Chikubushima sits in the north of Lake Biwa, Japan's largest lake, reachable by ferry from three towns on the shore — Nagahama and Imazu, plus Hikone across the water — none more than about 40 minutes away. Despite being this close to the mainland, and an easy day trip from Kyoto or Osaka, it is the kind of place most foreign visitors have simply never heard of, because almost nothing about it is built for them: no hotel, barely any English signage, and no way to stay after the last boat leaves.
That is not an oversight. The island — barely big enough to walk around in an afternoon — is considered sacred ground, home to the Buddhist temple Hōgon-ji and, a short walk along a covered corridor, the Shinto shrine Tsukubusuma-jinja, which has enshrined a form of the goddess Benzaiten here since the temple's founding was traditionally dated to 724 CE, on the order of Emperor Shōmu. Benzaiten here is counted among the "Three Great Benzaiten of Japan," alongside the shrines at Itsukushima and Enoshima — putting this quiet, hard-to-place island on the same short list as two of the most famous shrine locations in the country.
From the boat landing, 165 stone steps climb straight up through the trees to the temple precinct — steep enough that the island's own tourist literature specifically recommends good walking shoes. At the top sits the island's single most startling object: the Karamon, a wooden gate carved in Momoyama-period peonies, phoenixes and rabbits, and designated a National Treasure. Multiple serious sources tie it to Toyotomi Hideyoshi, the warlord who unified Japan, moved here around 1603 by his son Hideyori — but they disagree on which building it came from: a surviving piece of Hideyoshi's own Osaka Castle, by one account, or the gate of his memorial shrine in Kyoto, by another. Either way, it survived something almost nothing else from that era did, by ending up on an island too small and too holy for anyone to ever tear it down.
Through the gate, a covered wooden walkway called the Funaro — built, fittingly, from decommissioned boat timbers — leads to Tsukubusuma Shrine and a small veranda over the water, where visitors practice kawarake-nage: writing a wish on a pair of clay discs and throwing them through a torii standing out over the lake. Clear the gate and the wish is said to come true. Most people do not clear the gate. Nobody seems to mind.
Local legend reaches further back than any building here. An old regional record describes a height contest between two mountains, Ibukiyama and Mt. Asai; Ibuki lost its temper at losing and lopped the top off its rival, which landed in the lake and became this island — a story some historians think the Asai clan encouraged specifically to tie their family's prestige to a sacred island. True history or convenient myth, it fits a place treated as something other than ordinary land for 1,300 years.
You might expect an island this sacred and this old to have a resident priesthood living out some kind of monastic isolation. It is the opposite. Nobody stays overnight at all — the monks of Hōgon-ji and the priests of Tsukubusuma-jinja commute in by the same ferry you take, tend a National Treasure and a goddess thirteen centuries old, then catch the last boat home like anyone leaving an office. The island is never not sacred. It is just, every single night, completely empty.
- Hōgon-ji's founding is traditionally dated to 724 CE, on the order of Emperor Shōmu; its Benzaiten is ranked among the Three Great Benzaiten of Japan, alongside Itsukushima and Enoshima.
- The island's Karamon gate is a National Treasure tied to Toyotomi Hideyoshi and moved here around 1603 — sources disagree on whether it came from Osaka Castle itself or from his Kyoto memorial shrine.
- From the boat landing, it is exactly 165 stone steps up to the main temple precinct — the island's only route in, and its only real exercise.
Getting there
Ferries run from Nagahama Port (15 minutes' walk from JR Nagahama Station) and Imazu Port (5 minutes from JR Omi-Imazu Station), both run by Biwako Kisen, and from Hikone Port, run by Ōmi Marine — each crossing roughly 25–40 minutes. Round-trip fares run ¥3,000–3,800 depending on the port, plus a separate island admission of around ¥600. Boats run less often in winter, and your time on the island is fixed by the return sailing (typically 60–90 minutes), so check the operator's current timetable before you go.