what is there fun to do in san diego?
Hotel del Coronado Cabrillo National Monument San Diego Zoo Safari Park San Diego Zoo Mission San Diego de Alcalá Old Town San Diego State Historic Park Balboa Park Birch Aquarium Old Point Loma Lighthouse USS Midway
neutral
 San Diego has hosted several sports events . Three NFL Super Bowl championships have been held at Qualcomm Stadium . Two of college football 's annual bowl games are also held at Qualcomm Stadium : the Holiday Bowl and the Poinsettia Bowl . Parts of the World Baseball Classic were played at Petco Park in 2006 and 2009 . 

entailment
 The San Diego Surf of the American Basketball Association is located in the city . The annual Farmers Insurance Open golf tournament ( formerly the Buick Invitational ) on the PGA Tour occurs at Torrey Pines Golf Course . This course was also the site of the 2008 U.S. Open Golf Championship . The San Diego Yacht Club hosted the America 's Cup yacht races three times during the period 1988 to 1995 . The amateur beach sport Over @-@ the @-@ line was invented in San Diego , and the annual world Over @-@ the @-@ line championships are held at Mission Bay every year . 

contradiction
 During construction of the dam , it was anticipated that the large size and scenic location of the reservoir , coupled with its proximity to urban centers , would make it a large tourist draw . A $ 40 @,@ 000 plan was put forth to develop the reservoir for recreational activities . This entailed the construction of campsites , picnic areas , boat ramps , a landing strip , and hiking trails , including on 14 of the 33 islands in the lake . Don Pedro has become a popular summer destination in Central California , attracting 360 @,@ 000 – 400 @,@ 000 visitors each year . 

entailment
 San Diego 's roadway system provides an extensive network of routes for travel by bicycle . The dry and mild climate of San Diego makes cycling a convenient and pleasant year @-@ round option . At the same time , the city 's hilly , canyon @-@ like terrain and significantly long average trip distances — brought about by strict low @-@ density zoning laws — somewhat restrict cycling for utilitarian purposes . Older and denser neighborhoods around the downtown tend to be utility cycling oriented . This is partly because of the grid street patterns now absent in newer developments farther from the urban core , where suburban style arterial roads are much more common . As a result , a vast majority of cycling @-@ related activities are recreational . Testament to San Diego 's cycling efforts , in 2006 , San Diego was rated as the best city for cycling for U.S. cities with a population over 1 million . 

contradiction
 As of 2008 , the event has also spread to Seattle 's Cal Anderson Park as an annual celebration . 
