An online San Diego map is fine for some applications, but there are times when only a traditional printed San Diego map will do. One of these San Diego map selections will probably meet your needs.
From a respected mapmaker.
An atlas of San Diego with maps of varying detail from an overall freeway map down to detailed streets. Possibly overkill for a short visit, but one of my personal favorites.
A hand-drawn map that shows the major locations and sights. It's one of the best for discovering where things lie in relation to each other, and beautiful enough to display on the wall.
An illustrated map that's all you'll need to carry for a day of sightseeing.
If you hate to carry a lot of big bulky, stuff, this cute, little San Diego map is for you. It folds up to the size of shirt pocket, but opens out to two maps (detailed city map and area map), each about 8 by 10 inches. The cover is laminated for durability.
Streetwise's plastic-laminated maps are my favorites for carrying around all day. They cover the major tourist areas without providing too much detail, and they're virtually indestructible.