This happens sometimes when you get very large ships moving through narrow channels. Water can't move past them fast enough to fill in the space the ships are leaving behind them, so water is pulled in from off to the side, creating a powerful suction. Sometimes it can cause other ships docked adjacent to the moving ship to be pulled away from their dock and snap their lines, worst case scenario they can then collide with the moving ship. A very famous example of this happened when the Titanic was pulling out of Southampton. As it passed through a relatively narrow channel, this effect caused another ship, the SS City of New York, to snap her lines and move towards the Titanic. They almost collided but not quite. (Ironically if they had collided it would have saved a lot of lives, by delaying the Titanic's sailing, which would cause her to be nowhere near the iceberg when she eventually sailed.)

The only thing that sucks here is the video.

That ship is awfully close to shore.

cruise ships: the crowds of a city block within the confines of a boat with the safety of the ocean......brilliant lol

It didn't suck any water out. The port clearly has a sea break or a wall. The ship is so wide that when it's moving at speed it basically pushes the water that's it front of it out to the open sea , the water on the beach back fills the void left behind the ship. As the front of the ship enters open sea, the water can fill back in and fill up the beach again causing a rush and a wave. Simple really

Oh my god PHYSICS!

It's the worlds 2nd biggest cruise ship. Allure is 2 inches longer.

I thought it was supposed to be sucking the water in when all I saw was a massive displacement of water flooding an otherwise dry looking beach

The props pull so much water through them that the water on the shallow beach just gets sucked right under the ship.

BRUH IF SHE DIDNT KNOW WHAT THE SHIP WAS REALLY DOING THEN U DONT HAVE TO HATE ON HER

It's not sucking water off the beach it's displacing water onto the beach. The wave is moving across the beach

one day one of these ships is going to come back to shore and everyone on board will be infected and dead and it will be the beginning of the zombie apocalypse

That's Oasis Of The Seas and it's built on Turku, Finland. I am from Finland and i'm very proud :)

it didn't 'suck' the water out at all, it just caused a wake, for something to 'suck' the coast out it needs to be a huge void where that water would go. please go watch a documentary on tsunami's and see how they work

No one ever thinks that maybe ocean waters are rising because we’re putting massive amounts of ships that the displace thousands of tons of water.

Wow that makes a huge difference when talking about ships that are almost a quarter mile long!! Thanks for the info!!

I have seen similar effects like this one in rivers, channels, ports, ... Even if a inland barge sails trough a channel you can clearly see the water level lower 30-40 cm, after which it immediately rises again. When ships are passing or overtaking eachother at a close distance, these pressure waves have caused accidents in the past!

Anyone else notice the length of this ship is probably around the same height as the building in the video? It's a skyscraper floating on its side. This ship is just ginormous.

Used to see it all the time when I was working on the freighters on the Great Lakes - especially in the Saginaw River. Shallow, narrow channel - the propeller actually "sucks" the water from around the ship, pushing it astern and the water returns in a wave like what is shown in the video.

Jesus. It's doesn't "suck" the water off, it's displaces water, so that's water flowing INTO the nearby areas. Right now, Archimedes is spinning in his grave.

That ship is amazing. We sailed it this Summer on a Eastern Caribbean Cruise

If that was a multi storey car park it would be ugly - let alone a cruise ship. But thank goodness these things exist - keeps all those people away from nice places

I was on Oasis of the Seas a couple years backed and went through that very same channel. It looks tight but there was plenty of room for other small power boats to wiz by us on out way out of MIami. During low tide 8-10 feet under the keel of most large modern day ships is actually pretty standard.

I saw a video where a bird displays better understanding of displacement than humans. Crow: uses displacement to change water level to retrieve food. Human: OMG what's going to happen!?!,!,!???

Being stacked on a ship with hundreds of other people... I did that in the Navy, no thanks.

The captain of that ship is way better than the captain of the Costa Concordia

I live in a small town in Mexico. We are frequented by huge cruise ships that are endangering some of our fragile coral reefs by stirring up the sandy bottom of the bay. Sad! 😢

Wow 8 years ago? YT algorithm keeps me hooked.

Sue-Nammy wave ! lol

thats not a ship thats a skyscraper!!!

That "beach" you are seeing is not an actual public beach. The ship is moving through Port Everglades. That beach looking area is just a small cove within the inlet. Look at Port Everglades on google earth and you will see.

This is why Venice is going to enforce a size limit on ships to enter the port.

They need to label these for what they are, Cruise Barges.

Sucks water...BOUYANT thats how a boat floats! The water is actually being pushed away.

"Oh WOW! look at the Tsunami wave coming back" You Americans are hilarious!

This would be awesome for surfers, they should pass by that spot at a specific time and give a message in advance to anyone with a surf board.

you mean the boat made a wake? Sucked the water "off the beach? Didn't see a dry beach.

Floating Petri dish.

First Officer: Captian the waters getting shallower Captian: full suction and ahead flank Obeserving seagull: ( fish start falling from the sky due to the ship spitting fish out of the sea with thousands of Beach goers on the shore looking up with awe ) thats a cruise party for ya

The water is being pushed behind the ship by the props pushing it forward. This results in some water being sucked from the sides too, hence the water level lowers temporarily at the beach. As the tail end of the ship passes, all that water comes rushing back to shore. If the ship speed was slower, you'd have less of this effect. Everybody has heard of the "Titanic" but most don't realize just how much bigger today's ships are. You could fit TWO TITANICS side by side inside one of the Oasis class ships, they are gigantic. Titanic was 46,000 tons, Oasis of the seas is 227,000 tons!!!! Titanic carried 2200 passengers, this monster carries 5600 wow!

It's called water displacement.

Thats the 'venturi effect' thats happening

Sanford And Son ONE of the best comedy show they really have YOU laughing yeah THE cruise ships are beautiful

Same thing happens in any major river where there are barges. It's not so intense when they're going down stream but WOAH, water drops several feet when they're at full throttle going up stream. (my experience, lLL. River near Starved Rock)

I actually kind of disdain cruise ships...

Grab your surfboards kids, the tourist are leaving...

Your come back made my day! Ha ha ha!!

As a young Scout, being tested for my cook's badge, i was to wash the very large pot i cooked in for my fellow Scouts on camp nearby. I chose to do it on the banks of the Suez Canal all going fine till a huge liner sailed by, sucking away all the water, pot and all. I'll never forget the size of that propeller.....

more like a ripple than a wave

seth's bike hacks anyone?

Lol, befor I clicked on the thumbnail, the title read, "world's largest cruise ship sucks"

Watching that little back blip moving back to shore that quickly was worth it.

"there's a tsunami wave coming back" ??? yeah, like a real one is barely a few inches high :-/

Tsunami wave? Wow.... 'murica..

I WAS ON THE SHIP WHEN THIS HAPPENED, I SAW YOU WITH A CAMERA PEAKING OUT OF A WINDOW :O

Damn that's an ugly ship !

I guess you have to play the video backwards.

Funny, the ship looks like the upper decks are made out of bamboo scaffolding :D

Squat is the tendency of a ship to sit lower in the water when it's moving at relatively high speed in shallow water. The vessel is probably squatting a little here but you wouldn't be able to tell just by looking at this footage.

Reminds me of my brothers wife.

The SS Norovirus!

im thinking to go on this ship because it stops on Fort Lauderdale for a week, I live in Finland but when I was younger I lived winters partly in Fort Lauderdale. I miss those times, I miss Florida

The condos at the end of Port Everglades always sound their horn and give a nice send off. :)

Don't make me turn this boat around!

I WAS ON THIS SHIP WHEN THIS WAS SHOT :D

Of cures that ship is the biggest ship ever you know,the oasis and allure (same size/length)and i remember when i saw that ship once.

It's called the Squat Effect...or, sometimes Bottom Surge, which creates a pressure variation that can, and often times does, pull either the bow or stern lower in the water. As noted by others, the displacement of the water at speed can increase the suction affect and create a definite hazard to small craft. The entrance to San Diego Harbor between Ballast Point and North Island Naval Air Station isa location where the "bottom surge" can definitely suck small craft into the wake of a ship just abaft of the screw(s) (propeller(s).

I've been on that boat!

Looks like a council estate on a ship

This has to be without a doubt the most epic video ever posted on KZfaq. I watch it at least 70 times a day. It should be played before every commercial break on all channels. How I did not find this earlier I do not know. Don't just watch this video. Live this video. Its almost religious.

This happens when a large vessel travels by and nearby water is sucked towards it to make up for water being displaced and then replaced. I witnessed this while dredging as we would have a large dump-scow tied up to our dredge and a giant container ship would go by. The dredge operator would have to put the bucket inside the scow to secure it...so the suction wouldn't part our lines to the scow.

made in Finland

Ships this size shouldn't be build

What's with the dislikes? This is called a mini-tsunami caused by a cruise ship

That's crazy, I wonder if any damage was ever caused by these ships to other boats or people?

like ants in a bathtub. but not really that intense.

Grotesque excess with 3,000 wimps who want their entertainment spoon fed along with all you can eat meals for a week. That ship is the last place on earth I would ever want to be. I'd rather sail my own where ever I want to go.

For those fighting over who is bigger allow me to say the allure and oasis are twin sisters, the allure is bigger by 2 inches So isn't a big deal. Also the Oasis was set-seal a year before the allure so at one point the oasis was the biggest in the world.

Your logic here is discounting the point of a cruise. The point of a cruise isn't strictly the boat. It's to be able venture multiple places at a leisurely pace, without the stress of lugging bags to different lodging for every location, jet lag, and boredom. Theres plenty found on a ship that are not in shopping malls (quality conversations with individuals from around the world, wave pools, rock climbing) that cost no more than the price of the cruise.

looks like a livestock carrier, lol and, btw its displacing water NOT sucking it up Duhhh

HEY Captain Francesco Schettino...............this is how we do it in america.......BALLIN!!!!!

It's a good video. Thanks for posting it.

It is only bigger by a few meters I think it is because of the metal expanding when the Allure was built. Oasis and Allure have the exact same build.

Wow, what a trip. I've never seen that before. I guess they must dredge that channel since it's so close to shore?

Hydro dynamic forces at work. That's why if a person falls off the starboard side of a ship you put the rudder hard right to turn the screws away from him and to keep him in the calm water of the turn, it's also why larger ships tend to pull smaller boats and things like that into their sides. First proven when the RMS Titanic sailed and her pull caused the liner NY to break it's lines and almost collide with her.

This Is Why Aliens Never Visit Us!!!

Nonsense.What you're seeing is just the bow wave of the ship. It's physically impossible for the ship to suck water out of the harbour because it moves forwards by pushing water backwards -- back into the harbour. To suck water out of the harbour, it would have to simultaneously move itself and the water forwards, which can't be done without an external force.

That ship is called Oasis of the Sea, by Royal Carribean.

And that's what you get when an 800,000 ton ship displaces 800,000 tons of water.

This is what it looks like when your mom decides to take a bath.

IT DID NOT SUCK ANY WATER. I LIVE IN THE BUILDING ON THE LEFT THERE IS A SAND BAR EITHER SIDE OF THE CUT WITH WATER 1-2 FEET DEEP. ON THE FAR SIDE IS JOHN U. LLOYD PARK AND USCG STATION. THE CUT IS 60 FEET DEEP. ALMOST NO WAKE FROM THESE SHIPS. IT'S NOT ALLOWED.

Thanks for that short story jaybird

Yes, the props do take water from in front of them and push it backwards. But what you're seeing here is the bow wave of the ship pushing water *onto* the beach.

Amazing how close to the shore they are. In most places they would be bottoming out. Must be one hell of a drop off very close to shore!

its water displacement. The ships draft and displacement is HUGE, thus, when it leaves, it leaves behind a huge empty space that needs to be filled, thus, you get a mini-tsunami as the water rushes in to fill the space once occupied by the ship.

Water displacement, yeah it's why ice floats, boats push down and away the bigger the displacement the more of this equal and opposite reaction you get. "For every action, there is an equal and opposite reaction." Newton published his laws of motion in 1687,

That's cool! I went on the sister ship of oasis, allure of the seas, which is supposedly a bit bigger than oasis

Lol, I hope you read this video creator, my grandparents live in the same building this was filmed from, but on floor 12, this looks to be floor 7 or so on the right side based on the camera view.

You're 50% right. In order to push water back, it first has to be sucked (or pulled, if you will) in from the front. It's a double effect.

These floating hotels/shopping malls/casinos are dangerously top heavy. Can u imagine what would happen to one of these deathtraps in a full gale or a hurricane?