Poseidon Restaurant

Poseidon Restaurant has operated along Avenida 5 Norte in San Miguel de Cozumel for decades, becoming a fixture for the island's diving community and day-trippers arriving off cruise ships. There is no fine-dining pretense here — the kitchen focuses on straightforward, well-executed Mexican seafood served in generous portions. The ceviche negro, made with squid ink, gives the dish a striking black color and briny depth that has become something of a house specialty, while the lobster tail dinner is frequently cited as one of the best-value fine seafood plates on the island, priced well below comparable dishes at Cozumel's hotel restaurants. Coconut shrimp, breaded and fried with a sweet dipping sauce, rounds out the most popular orders. The bar's margaritas have built a local reputation of their own, mixed strong and served in generous glasses that pair naturally with an afternoon of post-dive recovery. There is no formal wine list; the drink programme centers on margaritas, micheladas, and cold Mexican beer. The dining room is open-air and casual, with fans overhead, tile floors, and a laid-back, come-as-you-are dress code that suits divers still in board shorts as easily as cruise-ship visitors. Noise levels stay lively but conversational, driven by a mixed crowd of returning regulars and first-time tourists. Poseidon does not require reservations for most parties; walk-ins are the norm, though larger groups arriving during peak cruise-ship days may face a short wait. The overall experience trades polish for reliability and value, which is precisely why it has remained a go-to lunch and early-dinner spot on the Cozumel waterfront for so long.