The Island So Sacred They Built the Shrine Over the Sea

The Island Was the Deity Miyajima — properly Itsukushima — was treated as sacred ground in its entirety. The mountain at its centre, Misen, is the focus, and the whole island was understood as a divine body rather than as a place with a shrine on it.

That premise produces the architecture. If commoners cannot walk on the island, the building where they meet the deity cannot stand on it either, so the shrine is constructed on piles over the tidal flats, its corridors and stage suspended above water at high tide. The gate stands further out, at the point where a boat would pass through it on approach.

The purity rules attached to this were maintained with real seriousness for centuries: no births and no deaths permitted on the island, the terminally ill and women late in pregnancy moved to the mainland, and no cemetery. Some of those conventions persisted into the modern era.

Taira no Kiyomori and the Shrine You See The shrine is old, with foundation traditions running back to the late sixth century, but the form it takes now is essentially the twelfth-century vision of one man. Taira no Kiyomori, the head of the Taira clan at the peak of its power, adopted Itsukushima as his clan's tutelary shrine and rebuilt it on an extraordinary scale in the shinden style of aristocratic Heian mansions.

That is why it does not look like other shrines. The long connected corridors, the open stage over the water, the proportions — these are the architecture of a Kyoto nobleman's residence, transposed onto the sea. Kiyomori's clan was destroyed within a generation in the Genpei War, and the shrine outlived them by eight centuries.

The Three Sisters The deities enshrined are the three Munakata goddesses, daughters of Amaterasu, associated with the sea and with safe passage — which fits an island in a strait that was a major shipping route. Their worship centres on the Munakata shrines in Fukuoka as well, and the maritime connection is the thread linking them.

This is worth knowing because it explains the shrine's function historically. It was not primarily a scenic destination; it was the place seafarers dealt with the deities who governed whether they arrived.

The Gate, and the Tide The torii standing in the water is not driven into the seabed. It stands under its own weight, the great pillars resting on the sand, stabilised by the mass of the structure and by stones packed into a box in the upper crossbeam. It has been rebuilt many times over the centuries; the present gate is the most recent in a long line and completed a major restoration in 2022.

Tide is everything. At high water it is a gate standing in the sea with the shrine appearing to float behind it. At low water the flats drain and you can walk out and stand at the base, looking up at pillars several times your height, with people pressing coins into the cracks. Both are worth doing and they are not the same experience, so check a tide table before choosing a ferry.

The Rest of the Island Most visitors photograph the gate and leave on the next boat, which is a mistake. Misen, the sacred mountain, is climbable in a couple of hours or reachable by ropeway most of the way, and the upper temple complex — associated with Kūkai, the founder of Shingon Buddhism — includes a hall where a fire is said to have been kept burning for over a thousand years.

The deer wander freely and are entirely unimpressed by you. And the island empties in the late afternoon when the day-trippers go, which makes staying overnight the single best decision available here: the shrine lit after dark, with the crowds gone, is the version worth the fare.