There are many things to do in San Diego today, depending on your interests. Here are some options:

1. Attend an event: Check out the San Diego Calendar of Events or Eventbrite to see what events are happening today. These could include festivals, art exhibits, film screenings, or live music performances.

2. Visit a local attraction: The San Diego Reader suggests visiting the San Dieguito Heritage Museum, Gaslamp Museum at the Davis-Horton House, or La Jolla Cove. You could also check out the Cabrillo National Monument on Point Loma for tide pools and great views.

3. Enjoy the outdoors: San Diego is known for its beautiful beaches, so consider spending some time at one of them. The San Diego Reader also recommends hiking or biking on one of the areas many trails.

4. Explore on a budget: If youre looking for free things to do, check out the list of 25 Fun & Free Things to Do in San Diego. This includes visiting the beaches, strolling through Balboa Park, and watching the sunset at Sunset Cliffs.

5. Ask locals for recommendations: If youre still not sure what to do, consider asking locals for recommendations. The r/asksandiego subreddit is a great place to start.

No matter what you choose to do, be sure to have fun and enjoy all that San Diego has to offer!