Trincomalee is a port city in Eastern Province, Sri Lanka and lies on the east coast of the island, about 113 miles south of Jaffna.

Trincomalee's strategic importance has shaped its recent history. The great European powers vied for mastery of the harbour. The Portuguese, the Dutch, the French, and the English, each held it in turn, and there have been many sea battles nearby.

The harbour, the fifth largest natural harbour in the world, is overlooked by terraced highlands, its entrance is guarded by two headlands, and there is a carriage road along its northern and eastern edges.

Trincomalee's location, in a less well developed and sparsely populated area, has in the past hampered its own development. Nevertheless plans are under way to develop Trincomalee as a commercial seaport.

Trincomalee has some of the most picturesque and scenic beaches found in Sri Lanka, relatively unspoilt and clean. The area is famous for bathing and swimming, owing to the relative shallowness of the sea, allowing one to walk out over a hundred meters into the sea without the water reaching the chest. Whale watching is a common pastime in the seas off Trincomalee, and successful sightings are on the rise with the increase of tourism in the area.