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Mission Bay is a saltwater bay or lagoon located south of the Pacific Beach community of San Diego, California. The bay is part of the recreational Mission Bay Park, the largest man-made aquatic park in the country, consisting of , approximately 46% land and 54% water. The combined area makes Mission Bay Park the ninth largest municipally-owned park in the United States. Wakeboarding, jet skiing, sailing, and camping are popular on the bay. With miles of light color sandy beaches and an equally long pedestrian path, it is equally suitable for cycling, jogging, roller skating and skateboarding, or sunbathing. Mission Bay Yacht Club, on the west side of the bay, conducts sailing races year-round in the bay and the nearby Pacific Ocean and has produced national sailing champions in many classes. Fiesta Island, a large peninsular park located within Mission Bay, is a popular location for charity walks and runs, bicycle races, time trials and other special events. It is also the home of the annual Over-the-line tournament. Mission Bay is also host to the annual Bayfair Cup, which is a hydroplane boat race that takes place on the H1 Unlimited circuit. ==History== Mission Bay Park was originally a tidal marsh that was named “False Bay” by Juan Rodriguez Cabrillo in 1542. It was developed into a recreational water park during the 1940s, 1950s, and 1960s. The San Diego River had historically shifted its terminus back and forth between San Diego Bay to the south and “False Bay” to the north. During the 1820s the river began to empty primarily into San Diego Bay, causing worries that the harbor might silt up. In 1852 the United States Army Corps of Engineers constructed a dike along the south side of the river to prevent water from flowing into San Diego Bay. This made “False Bay” an estuary outlet for the San Diego River drainage. Unfortunately the dike failed within two years. Finally in 1877 the city erected a permanent dam and straightened the river channel to the sea, giving the river its present configuration.〔(Smythe, William E., History of San Diego 1542–1908, Part Seven, Chapter II )〕 Today the San Diego River is constrained on both the north and the south by levees (San Diego River Flood Control Channel), and it no longer drains to the ocean through Mission Bay, other than through a weir located at the entrance to Mission Bay. During the late 1800s some recreational development began in “False Bay” including the building of hunting and fishing facilities. These facilities were destroyed by flooding that took place years later. In 1944, a Chamber of Commerce committee recommended development of Mission Bay into a tourism and recreational center, in order to help diversify the City’s economy, which was largely military. In the late 1940s, dredging and filling operations began converting the marsh into what today is Mission Bay Park. Twenty-five million cubic yards of sand and silt were dredged to create the varied land forms of the park, which now is almost entirely man-made. Approximately one half of the park was once state tidelands. Mission Bay Park was transferred to the City of San Diego with several restrictions, some of which were adopted into San Diego City Charter by public vote, with others implemented as part of the California Coastal Commission’s oversight of local planning and land use decisions. One of the restrictions sets a limit on commercial development of leaseholds, so that no more than 25% of the land area and 6.5% of the water area can be used for private purposes. This assures that most of the acres making up Mission Bay Park are available for public recreational use. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mission Bay (San Diego)」の詳細全文を読む スポンサード リンク
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