The capital has twenty-six thousand people, and fewer every year.

01 A capital that shrinks

The city figure and the metropolitan figure, set side by side, describe the whole situation. One in every fifteen inhabitants of the conurbation lives inside the capital municipality; the other fourteen live outside it. Banjul is the official seat, but Gambia's real urban life happens on the mainland.

That produces a very unusual capital: small, quiet, and with a far higher density of offices and ministries than of housing. By day there is movement, traffic and market; as the afternoon closes, much of the crowd that fills it crosses back to the continent and the island empties noticeably.

02 Two metres above the sea

The physical reason is the site. Banjul occupies St Mary's Island, at the mouth of the Gambia River on the Atlantic, and its elevation is two metres above sea level. Two. There is no hill, no land reserve and nowhere to grow: the island fills up and that is that.

Water is everywhere. The river on one side, the ocean on the other, and marshes and creeks all around. The city connects to the mainland by bridge, and to the north bank of the river by a ferry that leaves from the centre itself. Living here means depending, every day, on a crossing.

03 Bathurst, 1816

The city was founded on 23 April 1816 under the name Bathurst, and carried that name for a century and a half: it was changed to Banjul in 1973. Like so many settlements at a river mouth, it was born out of controlling access: whoever held the island held the entrance to the Gambia, which is the natural way inland.

From that period what remains is the urban grain — a short grid of streets with inherited names — and a handful of two-storey buildings with galleries, today badly worn. There is no monumental ensemble to tour: there is a low city of corrugated iron and many trees, with a few old pieces scattered among the rest.

04 How to visit it

In a morning, without stretching it. With twenty-six thousand inhabitants and a flat island, the centre can be walked without effort: the market, the commercial streets, the waterfront and the ferry landing. It needs no more time than it needs, and forcing it does not improve the visit.

The second thing is understanding where you sleep. Almost no traveller stays in Banjul: the accommodation is on the Atlantic coast of the metropolitan area, half an hour away, where most of the restaurants are too. The capital is visited from outside, exactly as almost all its workers use it.

And the third is a matter of expectation. This is not a capital that impresses by size or by monuments. What is interesting is precisely the opposite: it is one of the smallest capitals on the continent, it stands two metres above the water, it empties a little more every year, and it works as the door to a country that fits entirely along one river. Few cities explain their setting so quickly.