Stuck downtown? No worries - good stuff to be found, if you simply look
In the morning, drive up to Balboa Park for a walk, practice yoga, or simply meditate. The morning crowd is mostly walkers and joggers, amiable.
From there, stay up on the hill and find one of the many little tea/coffee shops - this area is up and coming - used to be a slum when I was a kid, but things are always changing.
Lunch or dinner - try Urban India - I actually unintentionally crashed an Indian party and was only found out when I asked where to sit...they were so kind - took me in, no problem. The waiter said I was supposed to be there, I agreed. Food was fantastic.
Craving a gorgeous sunset? Get your butt out to Coronado island - a quick hop over from downtown. Head west, my friend, right to the incredibly huge strip of sand. I think it's at least 1/4 mile to get from the street to the water. You'll have views of the Hotel Del Coronado all the way up to Point Loma. I spread out my yoga towel and practiced.