christopher gerteis
Enrichment lectures · Destination research · East Asia

Cultural Navigators

Enrichment lectures and destination research for luxury small-ship operators in East Asia — Japan, Korea, Taiwan and the China coast, read in the languages of the region, with every substantive claim checked against a named source and the checking published.

Japanese travel poster of the 1930s, ‘Come to Tokyo’: a red paper lantern and cherry blossom above a modern city skyline.
Come to Tokyo, travel poster, 1930s. Library of Congress, public domain — one of 119 catalogued items in the working image library.
Five talks

A complete programme delivered aboard RCYC Luminara, Hong Kong to Tokyo, April 2026 — slides and guest companion guides, published in full under an open licence.

One region

Japan, Korea, Taiwan, Hong Kong and the coastal Chinese ports. Nothing outside East Asia, at any price.

Every claim cited

A verification appendix ships with the guest material. Claims that cannot be checked to standard are kept out and listed as such.

What you can buy

Four lines of work

Each is bought by a different function, and each draws on the same underlying research.

01Enrichment lectures

Thirty-minute talks built to the operator's visual register, scripted and rehearsed, with a guest companion guide for each.

02Destination product strategy

Port files, route themes, seasonal sensitivity registers and named regional partners, for product development and voyage design.

03Crew capability

The same material cut short and retrievable, for onboard operations and fleet training — including what to say when a guest asks the hard question.

04Guest editorial

Pre-departure series, in-suite companion, per-port briefs and printed programme copy, for CRM and marketing. A delivered example is below.

How an engagement begins

Start with one route

A fixed-scope route review

One itinerary, read end to end against the regional record. It is deliberately small, so you can see the quality of the work before committing a season to it.

  • A port file for every call — what the copy says, what the record shows, and what the difference is worth on board
  • A sensitivity register for the sailing dates, so the calendar is checked before the itinerary is committed
  • Two or three route themes the itinerary already contains and is not yet using
  • A named source for every claim, and an honest list of what could not be verified

Fixed fee, agreed before work begins. Dated delivery. If it is useful, the lecture programme and guest material follow from it; if it is not, you have spent one fee and lost nothing.

Nippon Yūsen Kaisha poster of 1913 by Hashiguchi Goyō: a woman in a blue kimono holding a printed guide, a harbour visible through the window behind her.
Nippon Yūsen Kaisha, 1913. Hashiguchi Goyō (1880–1921), public domain.
Delivered work · RCYC Luminara, Hong Kong to Tokyo

A programme you can read

Five thirty-minute talks on alternating sea days, each with a guest companion guide, delivered aboard the Ritz-Carlton Yacht Collection's Luminara in April 2026. The whole series is published — the decks as delivered, the guides as guests received them.

Published openly. Every item above is released under the Creative Commons Attribution-ShareAlike 4.0 licence. An operator can read the entire programme, circulate it internally, and adapt it under the same terms, before commissioning anything.

An operator buying enrichment is usually buying a biography and a promise. Here the deliverable is on the table before the conversation starts. The wider archive — syllabi, essays and serialised chapters — sits in the Reading Room.

Guest editorial · Delivered, spring 2026

Seadays

The guest-facing web companion built for two East Asian voyages sailed in March and April 2026 — a page for every call and a page for every day at sea, written to be read in a suite or on a phone. It stands as the record of those voyages, and as the working example of what this line of work produces.

Screenshot of the Seadays website: a dark navy homepage headed ‘Seadays — Interactive Voyages through Historic Waters’, over a nineteenth-century harbour engraving, with the two voyages listed below.

Tokyo to Hong Kong through Nagasaki, Incheon and Shanghai in March; Hong Kong to Tokyo through the Ryūkyū arc in April — the same April sailing whose five lectures are published above. The talks carried the argument in the room; Seadays carried it for the rest of the voyage.

  • 15 port pages, one per call, with what to look for ashore
  • 13 sea-day essays, each taking up a question the next port raises
  • 8 thematic pieces — the Qing tributary order, the Ryūkyū Kingdom's dual subordination, the sugar economy, the treaty ports
  • 2 route maps and 2 daily schedules

Forty-four pages, no frameworks and no login, built to load on a ship's wi-fi. This is what the fourth line of work looks like finished rather than described.

The method

What the record shows

Nan’yō Yūsen Kaisha poster: a bird of paradise in flight above a palm-fringed shore.
Nan'yō Yūsen Kaisha, 1914/1935. USC Libraries, public domain.

Karatsu, Hashima, Hiroshima

Most East Asian itinerary copy is written from English-language sources, and English-language sources on these ports are thin, old, and largely derived from each other. Three worked extracts from the port library show what changes when the regional record is read instead — and what each difference is worth on board.

The method page also carries a sensitivity register, the boundaries of the practice, and what this consultancy deliberately is not.

Who does the work

Standing

Dr Christopher Gerteis, Associate Professor of Modern and Contemporary Japanese History, SOAS University of London.

Creator and Co-General Editor, Cultural History of East Asia — six volumes, Bloomsbury Academic, spanning three and a half thousand years.

The Hashima XR Project — historians, software designers and heritage researchers in Japan and the United Kingdom, documenting a contested industrial site in extended reality.

Full descriptions and reviews on the books page →

One region, held at depth

Scope

Covered

Japan, including the Ryūkyū and Amami chains, Hokkaidō and the Inland Sea · South Korea · Taiwan · Hong Kong · the coastal Chinese ports on Northeast Asian routes.

Not covered

Nothing outside East Asia. No Pacific, no Southeast Asia, no South Asia, no Australasia.

Get in touch

Enquiries

Tell me the itinerary and the season. A first reply usually comes within two working days, and the useful first conversation is twenty minutes about one route.