On campus there are three gyms, two swimming pools, a running track, various outdoor fields, outdoor basketball and outdoor tennis courts.
On campus gyms
There are three gyms on campus. The biggest, newest and most popular is RIMAC. You need your student ID to get into the gyms. During the summer you need to pay a rec fee to use the gyms.
The biggest gym on campus by far. It has a big weight room with lots of free weights and machines. Cardio machines are in the weight room and also downstairs near the racquetball courts. The gym is very busy in the late afternoon and early evening, especially at the beginning of quarters.
There is an upstairs wood court with two basketball courts and a larger downstairs wood court with five basketball courts. The various sports teams and intramural sports use these courts at different times. There are other rooms that are used for rec classes like yoga and dancing.
Main gym and Natatorium
This gym is not nearly as state-of-the-art as RIMAC and only has about a third as many workout machines. Still, it is convenient because it is just south of AP&M. The primary feature of the gym is a large basketball court. In the past, students and faculty have gotten together to shoot some hoops during lunchtime.
On the third floor, there is a small weight room with a few cardio machines. There are not many free weights, but there are machines to hit most muscles. The basketball courts are usually open during the day, but in the evening rec classes usually use the courts (judo, badminton, fencing, etc.). There are locker rooms available.
Also, the Natatorium (indoor swimming pool) is connected to the Main Gym building. The Natatorium is an indoor pool just over 3,000 square feet in size. It has huge glass walls and skylights which provide a feeling of being outside. The water is also heated to around 80 degrees, which makes it rather inviting. Unfortunately, there is no shower here.
Much like the main gym in the evenings, the pool is reserved most of the day. There are open hours when anyone can swim. The current open hours can be found here.
There are two pools located on the east side of campus. (It is close to Interstate 5, just east of the Engineering buildings in Warren College.) Both pools are heated, olympic size 50 meter by 25 yard pools. Each has a large outdoor spa. And unlike the Natatorium, showers are available, so you can wash off before getting dressed.
There are also 1 meter and 3 meter diving boards available during open rec dive. These are the main pools used by UCSD athletics. Check for open hours.
Several classes are offered each quarter. Sign up is required and there a fee for most classes. Most classes cost $20-$60 for a quarter. See the List of classes for more details.
Black’s Beach is a great place to run, and can be reached off La Jolla Farms Road. It’s a little less than a mile from AP&M to the beach, and if you head north, there’s about 2.5 miles of unobstructed beach in any tide conditions. Note: Stretches of this beach will probably contain naked people.
For those interested in housing near great running trails, the best options are those communities near Balboa Park as well as beach communities near Mission Bay (with many well maintained parks and trails). More organized running activities can be found via the SD Track Club. In particular, San Diego is host to the Rock and Roll Marathon, always the first week of June.
More information about biking can be found under Transportation.