Minami Bōsō Quasi-National Park

Minami Bōsō Quasi-National Park (南房総国定公園) is a quasi-national park in the Kantō region of Honshū in Japan. It is rated a protected landscape (category V) according to the IUCN. The park includes numerous widely separated portions of the coastal areas of southern Bōsō Peninsula, ranging from Cape Futtsu on Tokyo Bay to the west, to Cape Inubō facing the Pacific Ocean in the east. A portion of the park, located offshore the city of Katsuura has been designated as an underwater marine park since June 7, 1974. With the location of the park near to the Tokyo Metropolis, and its mild climate, the area attracts many visitors for water sports, camping, and flower viewing.

Like all Quasi-National Parks in Japan, the park is managed by local prefectural governments.

Jurisdictions
Minami Bōsō Quasi-National Park includes parts of nine jurisdictions in Chiba Prefecture.
 * Futtsu
 * Kimitsu
 * Minamibōsō
 * Tateyama
 * Kamogawa
 * Katsuura
 * Isumi
 * Kyonan
 * Onjuku

Bays and harbors

 * Bay of Tateyama

Capes

 * Cape Myōgane
 * Cape Taitō
 * Cape Hachiman, Isumi
 * Cape Hachiman, Katsuura

Mountains

 * Mount Tomi
 * Mount Nokogiri

Lighthouses

 * Nojimazaki Lighthouse

Castle remains

 * Katsuura Castle, Katsuura
 * Sanuki Castle, Futtsu