is a city and the county seat of Contra Costa County, California, United States. The population was 35,824 at the 2010 census. The downtown is notable for its large number of preserved old buildings. Martinez is located on the south side of the Carquinez Strait in the San Francisco Bay Area, directly facing the city of Benicia.
with surrounding areas in Martinez, Pleasant Hill, Concord, Lafayette, or Walnut Creek is home to Dae Han Martial Arts, a Martial Arts facility focusing on
programs in Kids Martial Arts, Adult Martial Arts, Birthday Parties, and Summer Camp.