What the record shows

A small castle town on the Genkai Sea, known for pottery and an autumn festival.

The name 唐津 reads as “the port to the continent” — kara here is the mainland at large rather than any one dynasty, and the harbour was named for its outward traffic rather than for itself; it faces the Korean peninsula across the Genkai Sea. Karatsu ware already existed in the 1580s, built on Korean-derived technique, and the potters carried back to Kyūshū during Hideyoshi's invasions of the 1590s vastly expanded it; Hagi ware, on the Japan Sea coast, was founded outright by Korean potters brought from the same campaigns. The old ranking of tea wares runs ichi Raku, ni Hagi, san Karatsu — and the second and third both rest on Korean potters and Korean technique. The aesthetic most often described to guests as quintessentially Japanese carries a Korean lineage that the ranking itself records and the tour script omits.

A ship calling at both Karatsu and Busan is sailing one story, not two. That is a route theme, and at present nobody is using it.

Gunkanjima, “Battleship Island” — an abandoned mining city, a UNESCO World Heritage Site, the model for a Bond-film villain's lair.

The 2015 inscription is titled Sites of Japan's Meiji Industrial Revolution, and its celebrated period frame runs to 1910; the Korean and Chinese forced labour at Hashima belongs to the late 1930s and the war years, after that frame closes. So part of what Tokyo and Seoul are fighting over is where the site's history is taken to end. But the boundary does not settle it: at inscription Japan undertook to present the fuller history, wartime labour included, and Seoul's charge — pressed since in successive UNESCO World Heritage Committee decisions — is that it did not. The dispute was built into the moment of inscription, less a disagreement about facts than about how much of the record the celebrated frame is allowed to hold.

Guests raise this at dinner, and crew currently answer from a fact sheet. The useful version is not a position on the dispute. It is an explanation of why the dispute exists, which is defensible in a way that a position is not.

The Peace Memorial Park and the A-Bomb Dome, usually paired with Itsukushima in a single day ashore.

Hiroshima was chosen as a target partly because of what it already was. Imperial General Headquarters relocated there during the war with China in 1894–95, and the port at Ujina was the principal embarkation point for troops crossing to the continent for half a century. The city's status as a military-administrative centre is what the guide's account of 6 August 1945 tends to leave out, and it is also what makes the Korean victims legible: they were in Hiroshima because Hiroshima was a mobilisation city. The memorial to them stood outside the park until 1999.

The standard Hiroshima excursion is the most emotionally loaded and least historically prepared morning on any Japanese itinerary. Twenty minutes of framing the evening before changes what guests are able to see.