Dejima

Built in 1636 originally to confine Portuguese traders, Dejima was reassigned to the Dutch East India Company in 1641 after the Portuguese expulsion. For the next two centuries a small staff of Dutch merchants lived under tight surveillance on this 1.3-hectare island, allowed across the bridge into the city only on a few official occasions per year.

The reconstructed buildings — chief factor’s residence, warehouses, kitchens, samurai guard houses — have been rebuilt in stages from the 1990s onward using original architectural surveys. Interiors are furnished as they would have been around 1820, mixing imported Dutch furniture with Japanese fittings, and the small museum threading through them covers the medical and scientific exchanges (rangaku, “Dutch learning”) that left Dejima with consequences far larger than the trade volumes.

The site reads in about an hour and a half. The newly opened Omotemon Bridge at the north side now reconnects the original entrance route across the former canal, which was the symbolic single threshold between Japan and the world.

Opening hours are 8:00 to 21:00 (last admission 20:40), open year-round. Admission is 520 yen for adults through March 2026; a significant price increase takes effect April 1, 2026, raising adult admission to 1,100 yen. The exhibits come with extensive English and Japanese explanations — the restoration team has clearly prioritized foreign visitors. Dejima sits in the center of the city, reachable from the Dejima tram stop on lines 1 and 5.

The interiors reward careful attention: Dutch-labeled diagrams, period trade ledgers, samples of the goods actually exchanged — copper, lacquerware, porcelain outbound; textbooks, scientific instruments, medicines inbound. The scientific exchange was asymmetric: Japan absorbed Dutch anatomy, astronomy, and gunnery wholesale, while the Dutch mainly wanted commodities. That imbalance is legible in the room layouts if you look for it.

The reconstruction project has been phased over decades, with the goal of eventually restoring the entire fan-shaped island outline. The Omotemon Bridge, completed in recent years, reconnects the original northern entrance route across the former canal — symbolically reopening the single threshold between Japan and the world. Several buildings remain to be restored, so the site continues to evolve. The Nagasaki Museum of History and Culture, a 10-minute walk northeast, provides broader context on the city’s foreign-trade history if the Dejima visit leaves you wanting more depth on the rangaku period and the Nagasaki magistrate’s oversight system.