Assuming you have a rental car,and you have the time, take the 5 south (or the 405 to the 5) to San Ysidro, park in the lot next to the fence and go thru the gates. Yep, 2 1/2 hours from LAX and your in TJ. If you can't find what your looking for there, You can't find it. I usually walk over to zona norte, its not far, but if you are not familiar with that just ask a cabby to take you to Adelita's. It's a bar that as good as it gets in the western hemisphere.