Saturday and Sunday, July 5 and 6, 2025 is the annual celebration of World Aquatics Day.

World Aquatics created this special event to bring attention to water sports and encourage people around the world to stay active in the water.

At Rosen Aquatic & Fitness Center (RAFC), we support aquatic fitness for water lovers of all kinds. From competitive athletes to recreational swimmers, everyone can enjoy the positive benefits of water-based exercise. And with World Aquatics Day happening this July, there’s no better time or place to make a splash.

Get ready to dive into the fun with these fascinating facts about water to help you get excited for World Aquatics Day.

Here are a few water fun facts to celebrate World Aquatics Day

Key Takeaways

Earth’s Surface is 71% Water

Our planet is big and striking, especially when it comes to the amount of water it holds.

Over two-thirds of Earth’s surface is covered by water alone. All of this water is made up of saltwater oceans and bodies of freshwater such as lakes and rivers.

An even more striking stat – saltwater oceans make up 97% of all the water on Earth. This means freshwater makes up only 3% of the planet’s water supply. But even though these bodies of water serve different purposes, they are both essential for all living creatures.

So next time you enjoy a glass of water or take a swim in the ocean, take a moment to appreciate the great water source that is our planet.

The Human Brain is About 75% Water

Not only does our planet hold boatloads of water, but our brains do too.

In fact, approximately three-quarters of the adult human brain is made up of water. And a baby’s brain has an even higher water content level at about 90%.

This high volume of water in our brains is crucial for supporting attention, memory, and cognitive function. So much so that a 2% drop in our brain’s hydration levels can lead to short term memory loss and negative mood changes.

Thankfully, staying ahead of dehydration is simple – just keep drinking water! Even Orlando’s most famous attractions offer water refill stations to help guests stay hydrated throughout their visit.

Now that you know these mind-blowing stats, make sure to fill up that water bottle for a happy and hydrated brain.

A Jellyfish and a Cucumber are Each 95% Water

If you’ve ever happened to wonder what a jellyfish and a cucumber have in common, we have your answer.

Both jellyfish and cucumbers have among the highest water content levels of all plants and animals.

When it comes to water-rich creatures, jellyfish lead the pack with 95% of their bodies made up of water. This makes them the only animal species in the world that is almost entirely water based.

Similarly, a cucumber ranks high on the list of foods with the most water. Packing 95% water in every bite, they’re both a healthy snack and an excellent source of hydration.

Does a glass of cucumber water sound good right about now, anyone?

Raindrops Aren’t Teardrop-Shaped

If you’re used to thinking raindrops fall from the sky in the shape of a teardrop, think again.

Raindrops actually take on a much more unique shape as they fall to the surface of the Earth.

If you take a closer look at a large raindrop, its shape resembles that of the top of a hamburger bun. This is due to the drag and air resistance the raindrop goes through as it makes its way through the atmosphere.

The air pressure pushes the bottom of the raindrop as it falls, creating a rounded top and an inward bottom. This creates the appearance of a top of a hamburger bun rather than a teardrop.

So next time you watch a rain shower, you can think of it as little hamburger buns falling from the sky.

There is Water on Mars and the Moon

Looking for a fun fact about water that’s truly out-of-this-world? We’ve got you covered.

You might be surprised to learn there’s water on both the surfaces of the moon and the planet Mars.

The first signs of water on the moon were discovered by late 19th century astronomers. In the early 20th century, samples from the Apollo era confirmed the existence of frozen water on the moon.

Similarly, late 19th century astronomers found evidence of water in the form of ice on the surface of Mars. Despite the planet’s mostly desert landscape, astronomers believe that liquid water is also beneath the planet’s surface.

While the water on these outer-space realms might not be much, or like Earth’s, it’s still there for us to admire from afar.

An Olympic-Sized Swimming Pool has Over 660,000 Gallons of Water

The Olympic Games pack in tons of fun, but the pools hold even more tons of water.

To be exact, 882 tons of water are used for each of the swimming pools at the Olympic Games. That means these massive competition pools contain over 600,000 gallons of water.

To put this into perspective – if you were to fill up one of these pools with a simple garden hose, it would take you nearly three weeks to get the job done.

Luckily, you don’t need to be an Olympian to swim in one of these larger-than-life pools.

At RAFC, we offer an Olympic-sized competition pool with 17 lanes for competitive swimming and other aquatic events. It’s the right place to see what Olympic-sized competition is all about.

Celebrate World Aquatics Day at RAFC

This July, celebrate World Aquatics Day at a state-of-the-art aquatic and fitness center.

With three heated pools and plenty of space to swim, it’s the perfect way to celebrate the joy of being in the water.

Whether you want to achieve your fitness goals or get some good exercise, there’s something for you at RAFC.

So visit our family-friendly facility and discover the endless ways to make a splash on World Aquatics Day.