Miami is part of the Sunshine State. Emphasis on warm sunshine. And thanks to geography, there's no shortage of fresh seafood. One plus one equals an eatery that offers everything oceanic and atmospheric any diner could wish for. Sit outside on the kitchy, ultra-informal patio from 3:00 to 7:00 p.m. and cram your maw with fat, fresh oysters at two bits apiece. Then step inside and enjoy a tangy, chunky Peruvian ceviche or perfectly broiled snapper fillet. Menu items range from five bucks up toward $50, and each carries well the weight of its price. There are boatloads of thatched-roof, shorts-and-T-shirt joints in Miami that provide mouthwatering shrimp-fish-squid-clam-lobster-oyster fare. And there's a bouillabaisse of dark, wood-hulled, sea-supplied restaurants to enjoy. But Catch of the Day casts its net and hauls in all that is delicious from the bountiful sea.