■Saikai National Park 24,636 ha.:(March. 16, 1955)

This park consists of more than 400 islands, large and small, including Hirado, Kujukushima Islands, and Goto (five islands) Archipelago, extending off northwestern extremity of Kyushu.
In sharp contrast to Seto-naikai National Park which locates in inland sea area studded with many islands, Saikai National Park possesses dynamic oceanic scenery.
Kujukushima Islands are a cluster of nearly 200 isles situated west of Sasebo City. Hirado retains the historic sites of its erstwhile port for foreign trade. Goto Islands have interesting inlets and high cliffs as well as rare volcanic formations, i.e. aspite-homate and cindercone.
Climate is mild, and many subtropical plants grow. Old intercourse with Chinese main land and crypt-Christian activities, which were officially banned by Shogun in Edo era, can be traced there today. Summer is the best season to visit this park. Swimming, fishing and excursions by boat are very popular.