Los Naranjos, a few blocks behind the central plaza, is one of the longer-running family seafood places in Manzanillo. The dining room is plain — plastic chairs, tile floor, an open kitchen — but the shellfish soup, the aguachile, and the whole grilled snapper are reliably excellent and reasonably priced.
It is busy at lunch with workers from the port and quiet by mid-evening. No reservations, no nonsense.