Whether you’re looking for trophy-sized tuna, swordfish, or marlin, these destinations promise adventure, adrenaline, and a deep connection with the sea.

1. Mar del Plata, Argentina – The Atlantic Gateway

Known as Argentina’s most iconic seaside city, Mar del Plata is a prime destination for deep sea fishing. Located on the country’s Atlantic coast, it offers easy access to deep waters where anglers can target species like blue shark, sea bass, and bonito.

Best Season: November to April

Highlights: Experienced local charters, close proximity to deep waters, and vibrant coastal life for post-fishing relaxation.

2. Golfo San Jorge, Patagonia – Wild Waters, Untamed Fish

Situated between Chubut and Santa Cruz provinces, the Gulf of San Jorge is a lesser-known gem with extraordinary biodiversity. Deep sea fishing here often yields hake, kingclip, and large Patagonian toothfish.

Best Season: December to March

Highlights: Remote and rugged setting, abundant marine life, and minimal fishing pressure.

3. Puerto Madryn, Argentina – Between Whales and Swordfish

A top ecotourism destination, Puerto Madryn is also becoming increasingly popular for deep sea anglers. Its waters offer the chance to catch tuna, swordfish, and various shark species—all while surrounded by the stunning natural backdrop of whales, dolphins, and sea lions.

Best Season: Spring to late summer

Highlights: Combined wildlife viewing and fishing experiences, eco-friendly tours, and calm deep water access.

4. Florianópolis, Brazil – Exotic Waters and Tropical Giants

Just beyond Argentina’s borders, Florianópolis in southern Brazil is a hotspot for blue and white marlin, mahi-mahi, and wahoo. The warm Atlantic waters and tropical currents attract big game fish year-round.

Best Season: September to February

Highlights: Tropical climate, expert charters with English-speaking guides, and luxury fishing resorts.

5. Cabo San Lucas, Mexico – The Global Capital of Sport Fishing

While farther afield, Cabo San Lucas remains a bucket-list destination for serious deep sea anglers. Situated at the meeting point of the Pacific Ocean and the Sea of Cortez, it offers unparalleled access to billfish, tuna, and dorado.

Best Season: May to October

Highlights: International fishing tournaments, elite fishing fleets, and high catch-and-release ethics.

Deep sea fishing is more than a sport—it’s an adventure that connects anglers with nature, culture, and unforgettable moments at sea. Whether you're staying local in Argentina or casting your line farther from home, these destinations offer some of the best offshore fishing experiences in the world.