administered by Da Nang City and Khánh Hòa Province. However, sovereignty over them is disputed and Vietnam actually controls only some of the Spratly Islands. Hydrography There are several rivers along the South Central Coast, the most significant being Thu Bồn River in Quảng Nam province and Đà Rằng River in Phú Yên province (most of the latter's river system is in the Central Highlands. Other major rivers include Trà Khúc River in Quảng Ngãi province, Côn River in Bình Định province, Ki Lo River in Phú Yên province, Cái River in Khánh Hòa province, and Dinh River in Ninh Thuận province. Climate Summer temperatures average above along most of the coast with slightly lower temperatures further inland. Winters are significantly cooler with average temperatures ranging from around . The region includes some of the most arid (Ninh Thuận province and Bình Thuận province) as well as some of wettest climates in Vietnam (Da Nang, parts of Quảng Nam province, Quảng Ngãi province), with the rest being somewhere in between. While average precipitation per year exceeds in many parts of the three provinces in the north of the region, it is less than in much of Ninh Thuận province. Economy Agriculture, forestry, fishing The South Central Coast's sector 1 (agriculture, forestry, fishing) performance can be seen as average in the national context, with its GDP contribution similar to its population share (9.7% and 9.5%). Rice output is below average, but output of some other crops (see table below) as well as forestry and fishing are above average. The province with the largest sector 1 economy is Bình Định (contributing 22.9% to the regions sector 1 GDP), due to its relatively large output in agriculture, forestry, and fishing. It is followed by Quảng Nam province with 15%, Bình Thuận province with 14.6%, Quảng Ngãi province and Khánh Hòa province with around 13% each. Forestry output is concentrated in Quảng Nam province and Bình Định province with around 25% each, with Quảng Ngãi province and Bình Thuận province contribute another 15% each, while Da Nang and especially Ninh Thuận province have very small forestry sectors. Fishing output is highest in Khánh Hòa province (22.3%) and Bình Định province (19.6%), followed by Phú Yên province and Quảng Ngãi province with around 12% each and Quảng Nam province, Bình Thuận province and Phú Yên province with 9 to 10% each. 2.52 million tons of