Yes, first come first served, but it's alot of tables. Several. You will find a seat. But Sundays it's more busy. It's like a pier. If you like seafood and sodas/beer I highly recommeded. Also Mariachi and Conjunto walking around the tables.
Yes there is tons of sitting there outside and inside just watch out you don't get bird bombed there's a lot of Seagulls around there
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