Diamond hill is a reminder of the second world war, with remnants of a signal tower and a bunker offering a window into life at the harbour in the 1940s. Hiking up this hill named by the British provides access to these sights of an era long bygone. Hikers will enjoy the climb up the hill, with only rocks and trees for support. At the end of this climb is a glorious view of Trincomalee Bay, with all of the bay’s hidden coves, as well as the Prima flour factory being visible.