Bunce Island

The island is small, densely wooded, and hemmed in by mangroves, the laterite fort almost invisible from the water until a sharp turn in the river brings the walls into view. A path of loose laterite gravel leads from the landing stage to the main gate, flanked by crumbling walls and the shadows of massive warehouses where goods were stored before being traded for human beings.

The Atlantic is audible beyond the tree line, louder on some days than others, and the smell of salt comes in strongly when the wind is from the south-west. The fort was built by the British in stages from the 1670s, its plan fitting the irregular shape of the island with a courtyard, a male holding yard, a female yard, and a tunnel gate — the last designed so that enslaved people could be marched out to ships in the river below without being seen by those waiting in the courtyard.

Inside the main hall, window slits cut high into thick walls create pools of coloured light on the stone floor. The names of 19th-century visitors are scratched into the plaster in several languages, alongside older markings that may be Mende or Temne. The island has no museum and almost no interpretive panels; what you feel is the texture of the rooms and the scale of the holding yards rather than a curated narrative.

The statistics of the slave trade become concrete here. An estimated 300,000 enslaved Africans passed through this river system; the trade continued here for over a century after it was abolished in British territories in 1807. The names of some known individuals are recorded, and the dates of several known ship departures are carved on a plaque near the main gate. Knowing that these individuals had names, homes and languages makes the arithmetic of the trade feel different.

Access is by small motorboat from the Freetown peninsula, and the crossing takes about 40 minutes. The island has no facilities beyond a caretaker and a small shed selling water. The best time to visit is in the dry season from November to April when the river is calm and the heat is manageable; the wet season brings difficult crossings and leech-infested paths.

The crossing back to the mainland at sunset gives a different perspective on the river and the islands behind it. Freetown's hills appear on the horizon and grow larger as the boat approaches, and the light on the water in the late afternoon turns the river gold. Most operators time the return crossing to take advantage of this light.

It is one of the most intact surviving British slave-trading forts on the West African coast, and one of the few that remains substantially unspoiled by later development.

The site is not yet a UNESCO listing, which gives it a rawness and quietness that fully developed heritage sites can lose.

The physical experience of the holding yards, tunnel gate and river approach is difficult to replicate from text or museum display.