As much as I love a 99 cent taco off a food truck, the best place to munch on mariscos is in Baja. There are a few tasty options right across the border, in Tijuana, and lots more about an hour south, in Ensenada. I spent 48 hours feasting on fish tacos and tostadas, ranging from deep-fried filets of shark covered in crema, salsa, and slaw, to fresh octopus ceviche. Check out all of my top picks on Serious Eats.