The Longest Beach in the World – All You Need to Know

Praia do Cassino in Brazil is about 254 km long, making it the longest continuous beach in the world. Cox’s Bazar in Bangladesh is also very well known and is called the longest natural sandy sea beach. So, both beaches have the title, but for slightly different reasons.

Cox’s Bazar gets all the fame for its 120-km stretch of natural sandy shoreline, and yes, people call it the world’s longest natural sandy sea beach all the time. But when you’re talking about the longest continuous beach? That record goes to a place in southern Brazil , Praia do Cassino, that most people wouldn’t guess.

This beach just goes on and on along Brazil’s Atlantic coast, and it is the biggest beach in the world. We’re talking roughly 254 km of sand, which is longer than most road trips you’ve probably taken. It starts around the Molhes da Barra near Rio Grande and keeps going all the way down toward Chuí, right by the Uruguayan border. Nothing really interrupts it. Just sand, sand, and more sand. Even Brazil’s Rio Grande do Sul tourism department calls it the largest continuous beach in South America , and yes, it’s got a Guinness World Records recognition too.

And that’s the cool part. It isn’t just some big number to brag about. You can actually drive beside the ocean here. Watch seabirds. Spot shipwrecks and breakwaters. Stand on a beach that genuinely feels like it has no end.

So, which is the longest beach in the world?

That depends on what you mean by “longest,” honestly.

Praia do Cassino in Brazil is generally accepted as the longest continuous sandy beach in the world, and most sources put it at about 254 km. Though you’ll see some say around 212 km — because measuring a coastline isn’t like measuring a straight road, you know? That Guinness claim everyone talks about? It goes back to 1994.

Cox’s Bazar in Bangladesh, on the other hand, stretches for about 120 km. Bangladesh’s own tourism authorities promote it as the longest natural beach in the world, and that’s the label that has stayed with it.

So instead of saying one place is “right” and the other is “wrong,” look at the category:

1. Longest continuous beach: Praia do Cassino, Brazil
2. Longest natural sandy sea beach: Cox’s Bazar, Bangladesh

Keep this interesting fact in mind, and you will have all the correct answers you need.

Praia do Cassino, Brazil: The Beach That Just Keeps Going

You’ll find it in Rio Grande do Sul, down in southern Brazil, running along the South Atlantic coast. The beach kicks off around the Molhes da Barra and heads south toward Chuí, pretty close to the Uruguayan border. The numbers are wild, sure. But the experience is what gets you. In a lot of spots, the sand packs down so hard that vehicles can cruise right along the water’s edge. You can walk, bike, surf, fish, or just sit there and watch the Atlantic roll in.

And this place, which is the longest sea beach in the world, is more than just a strip of sand. You’ve got dunes, birds everywhere, fishing spots, and landmarks scattered along the coast. The Molhes da Barra, with those huge breakwaters built to keep the navigation channel into Rio Grande port in check, are one of the big draws around here. Then there’s the Altair, a cargo ship that ran aground during a storm back in 1976. Still sitting there. Kind of an odd landmark, but people love it!

Weather

Southern Brazil isn’t what you picture when you think “Brazilian beach.” It’s more temperate than tropical. Summers are when things get lively, but the weather can flip fast because you’re staring right at the open Atlantic.

Best time to visit

December to March is your sweet spot if you want warm weather and actual beach activity. Summer’s when the water sports and outdoor stuff really pick up.

Try this

Don’t show up for an hour, snap a photo, and bail. That would be a waste. Give it some time. Take a long walk. Drive along the shore. Catch a sunset. That’s when you actually feel how massive Praia do Cassino is.

What Makes Praia do Cassino So Special?

A beach that goes on for hundreds of kilometres is already pretty wild. But Praia do Cassino Beach, Brazil, has a few tricks up its sleeve:

1. You can actually drive on the beach.

One of the weird things about Cassino is how hard and compact the sand gets in places. Vehicles can roll right up to pretty close to the water. So, a beach drive isn’t some special tour; rather, it’s just part of the experience. Not exactly what you picture when you think “seaside holiday.”

2. It’s got a proper maritime landmark.

The Molhes da Barra jut out into the ocean, and they’re crucial for the port’s navigation system. Plus, they’re one of the most photographed spots around the beach.

3. There’s more than just waves.

Praia do Cassino is solid for watching migratory birds and spotting marine animals. The coastline is so long and open that you get chances to see the landscape beyond the usual swim-and-sunbathe routine.

Pro tip: This beach is massive. Don’t make the mistake of seeing one crowded section and thinking you’ve “done” Praia do Cassino. Check out different stretches along the coast. That’s the only way to get a real feel for the scale.

Things to Do Around Praia do Cassino

Wondering what you could possibly do at a beach that’s basically famous for being ridiculously long? Turns out, plenty.

1. Explore the Molhes da Barra: Those huge breakwaters are one of the defining sights here. Good for a walk, great for photos.
2. Look for the Altair shipwreck: That grounded vessel has been part of the Cassino landscape since ’76. One of the weirdest, most recognisable things on the beach.
3. Try water sports: Surfing, windsurfing, kitesurfing — all big here, especially when the weather warms up.
4. Go birdwatching: Keep your eyes peeled for migratory birds and other wildlife along the coast.
5. Take a long coastal walk: Sometimes the simple stuff works best. On Cassino, an ordinary walk feels completely different because of how far that shoreline stretches.

The Largest Beaches: Other Giants to Know

Praia do Cassino isn’t the only beach that feels like it goes on forever. If you’re putting together the world’s biggest beach list, here are the other names worth knowing.

1. Praia do Cassino – Brazil

The approximate length is about 254 km. This is the one that makes headlines. Located in Rio Grande do Sul, Praia do Cassino Brazil, is known for that incredibly long continuous stretch of sandy coastline. If you’re specifically hunting for the world’s longest continuous beach, this is it.

Best for: Long beach drives, surfing, coastal walks, and seaside experiences you won’t find everywhere.

Don’t miss: Molhes da Barra and the Altair shipwreck.

Interesting fact: Some sections of this beach are around 200 metres wide. The scale is just insane.

2. Eighty Mile Beach – Australia

The approximate length is 230 km. The name says “eighty mile,” but Eighty Mile Beach is way longer than that. It’s in Western Australia , super remote, and known for massive tides and tons of birdlife.

Best for: Wildlife lovers and anyone who wants a quiet, remote coastal experience.

Go for: Birdwatching and dramatic coastal scenery.

Keep in mind: Don’t come here expecting resorts and beach bars. Rather, look for a pleasant nature experience.

3. Cox’s Bazar – Bangladesh

The approximate length is 120 km. This is where the confusion usually starts. Cox’s Bazar is called the longest natural sea beach in the world all the time, and Bangladesh’s official tourism info still uses that description. The sandy beach runs along the Bay of Bengal with a gentle slope.

Best for: A lively seaside holiday with real local character.

Try out: Catching sunrise or sunset over the Bay of Bengal.

Explore nearby: The wider Cox’s Bazar area includes spots like Himchari and Inani, so there’s more than just the main beach to check out.

4. Padre Island National Seashore – USA

The approximate length is about 105 km. Down on the Texas Gulf Coast, Padre Island is better known as the world’s longest undeveloped barrier island rather than just claiming the longest beach title.

Best for: Nature, wildlife, and wide-open coastal landscapes. Look out for sea turtles, especially around nesting season.

Why visit: It’s a completely different vibe from those packed American beach resorts.

5. Ninety Mile Beach – New Zealand

The approximate length is about 88 km. New Zealand ‘s Ninety Mile Beach is another name that always shows up on the longest-beach lists. Despite the name, it’s actually closer to 88 km if you measure it properly.

Best for: Dramatic landscapes and road-trip-style adventures. Also, you can try sandboarding on the dunes.

Fun fact: The name is a bit misleading, as the beach isn’t actually 90 miles long.

Why Are There Different Answers to “The Longest Beach”?

The answer to this question gets a bit technical, but it’s extremely interesting.

A beach isn’t some ruler-straight highway. Coastlines curve, split, merge, and shift. Depending on where you say the beach starts and ends, and how closely you measure all those curves, you end up with different numbers.

This is called the coastline paradox. Praia do Cassino, for example, is reported to be anywhere from about 212 km to 254 km depending on who’s measuring and what definition they’re using.

Then there’s another question: what even counts as a beach? An uninterrupted sandy shoreline? A natural beach? A barrier island? One specific recreational section? Or one connected stretch of sand?

That’s why travel articles sometimes give you answers that seem to contradict each other.

The safest way to put it is that Praia do Cassino is recognised as the world’s longest continuous beach, while Cox’s Bazar is widely known as the world’s longest natural sandy sea beach. That gives travellers the context they need instead of boiling the whole thing down to one number.

Planning a Trip to Brazil? Don’t Stop at the Beach

If Praia do Cassino has you thinking about southern Brazil, consider mixing it with some of the country’s bigger-name highlights. Brazil is huge. The experience changes completely from one region to the next. You can blend beaches with cities, rainforest adventures, food, culture, and all those famous landmarks people talk about.

For first-timers, Rio de Janeiro  is the obvious add-on. If you’ve got more time, you can string together destinations across South America. And you don’t necessarily have to figure it all out yourself.

Why Choose Thomas Cook for Your Brazil Holiday?

Planning a Brazilian holiday from India isn’t just booking a flight and a hotel. The distances are enormous, itineraries get complicated fast, and there’s a lot to cram into one trip. Thomas Cook currently offers several Brazil holiday packages, including itineraries that cover Brazil and wider South American destinations. Their Brazil lineup includes options like South American Delights, longer South American itineraries, and packages you can combine with places like the Amazon , Ushuaia , and Patagonia.

The upside is simple: instead of booking every flight, hotel, transfer, and sightseeing experience separately, you can pick a planned itinerary and tweak elements where possible. Thomas Cook also highlights options to customise flights and activities on selected packages, which makes it easier to shape the trip around what you actually want to do. So, explore the Thomas Cook Brazil holiday packages today!

The Bottom Line

So, is Praia do Cassino in Brazil the longest beach in the world? Yeah — when you’re talking about the world’s longest continuous beach, it’s the record-holder, generally put at around 254 km. But Cox’s Bazar earned its fame too. At about 120 km, it’s one of the world’s great natural sandy sea beaches and is widely described as the longest natural sandy sea beach.

Either way, the idea of a beach stretching more than 100 km is pretty mind-blowing. And if you want to see what an “endless beach” actually looks like, Praia do Cassino Beach, Brazil, is the one to add to your list.