The Gambia less than wide at its widest point, with a total area of . About (11.5%) of the Gambia's area are covered by water. It is the smallest country on the African mainland. In comparative terms, the Gambia has a total area slightly less than that of the island of Jamaica. Senegal surrounds the Gambia on three sides, with of coastline on the Atlantic Ocean marking its western extremity. The present boundaries were defined in 1889 after an agreement between the United Kingdom and France. During the negotiations between the French and the British in Paris, the French initially gave the
Visa policy of the Gambia unless travelling as a tourist on a charter flight. Holders of diplomatic, official, service or consular passports issued to nationals of Central African Republic, Chad, Comoros, Djibouti, Egypt, Eritrea, Libya, Sao Tome and Principe, Somalia, Sudan and Tunisia do not require a visa.<br> Nationals of any country with a diplomatic passport do not require a visa. A visa is also not required for tourists arriving on a charter flight. Citizens of the following countries can obtain a visa on arrival: Nationals of other countries and territories require a visa to visit The Gambia and, in the case of travellers using