Travelers are voting SeaWorld San Diego and Legoland California as the best amusement parks in San Diego. There are 2 amusement parks in Oceanside a city just 30 km from San Diego and 1 amusement park in Bonsall which is 33 km distant. The most popular of these are SeaWorld San Diego in Oceanside and Legoland California in Bonsall. You can find 26 amusement parks in California and 209 amusement parks in the country of United States. Our members favorite in California is Raging Waters Sacramento and Cedar Point is the top pick in United States. Want more? Check out our map of amusement parks in San Diego.