Diving in Argentina

South America

4 regions

464 dive sites

Argentina might not be the first place that springs to mind for a dive trip, but trust us, it’s got some truly memorable cold-water diving experiences. Forget tropical reefs; here, it’s all about dramatic landscapes and incredible marine mammal encounters. Puerto Madryn, in particular, is where we head for playful interactions with sea lions and the sheer spectacle of southern right whales cruising past. For something completely different, the rugged coastlines of Tierra del Fuego near Ushuaia offer dives in a truly wild, remote setting, often surrounded by Magellanic penguins. We’d suggest aiming for late spring through early autumn, roughly October to April, to catch the best of the wildlife and slightly calmer conditions, though "calm" is a relative term down here. It’s a place for divers who appreciate raw nature over technicolour corals.

Argentina Dive Regions

4 diving areas in Argentina

Bahía Bustamante

A remote Patagonian bay with penguin colonies, sea lion haul-outs, and pristine kelp forest diving in nutrient-rich waters.

Mar del Plata

Mar del Plata might not be the first place that springs to mind for South American diving, but for those of us living in Buenos Aires, it’s our go-to for ocean diving. We love that it’s so accessible, just a few hours' drive, offering a genuine escape from the city buzz. What you'll find here is a cool mix: some fascinating wrecks, vibrant temperate reefs, and the sheer joy of diving alongside wild sea lions. During the austral summer, from December to March, the water warms up a bit, making it the best time to explore. The visibility averages around 10-15 meters, sometimes pushing 20 meters on a good day, but honestly, it’s the sheer density of life that grabs you. Our favourite dives are definitely around the sea lion colonies. Dropping down, you're immediately surrounded by these playful giants, their sleek bodies twisting and turning, sometimes nudging your fins. It’s an exhilarating, boisterous experience, their barks even muffled underwater. Beyond the sea lions, the wrecks are full of life. Schools of stripy and kingfish dart through the decaying structures, and if you’re lucky, you might spot an apron ray tucked into a crevice or a Chilean angel shark cruising along the seabed. The reef ecosystems are dotted with smallnose fanskates and elf, a real contrast to the tropical sites we often visit. It's a different kind of beauty, a bit rugged, a bit wild, and thoroughly rewarding.

445 dive sites

Puerto Madryn

Puerto Madryn is an interesting spot, definitely Patagonia’s diving capital. You’re not coming here for tropical reefs, that much is clear. This is cold water diving, and it's all about the marine mammals. From June to December, the southern right whales are the main attraction, sometimes cruising right past the dive boats. Outside of whale season, you’ll find plenty of sea lions and elephant seals. The occasional orca sighting from the boat is always a thrill. Expect good visibility on calm days, though it can drop after heavy winds. The reef structures are mostly rocky with kelp forests, home to species like blue mussels and Cancellated Clams, but the bigger draw is the wildlife.

19 dive sites

Ushuaia & Tierra del Fuego

The world's southernmost diving with kelp forests, king crabs, and sub-Antarctic marine life.