Around 70 percent of the Earth’s surface is covered in water, giving it a blue appearance when viewed from space, which is how it got the name, the blue planet. Of the total water on Earth, 97 percent of it is found in the ocean. In today’s collection, I bring together coloring pages inspired by the creatures and the world under the sea or ocean.
Earth’s water surface is divided into five major oceans: the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Arctic Ocean, and the Antarctic Ocean. The remaining areas are named as seas, gulfs, bays etc., depending on their location, like near a coastal line or sections of the ocean. However, the ocean and sea are often used interchangeably to convey the same body of saltwater. The sea or the ocean plays a crucial role in making life on earth possible and is home to diverse habitats for a wide variety of plants, animals and other organisms.
30 Under The Sea/Ocean Coloring Pages
It’s time to take the plunge and discover the hidden world and meet the underwater creatures, through this printable collection of 30 under the sea/ocean coloring pages.
Diver Discovers Under The Sea World

The fish under the sea are getting curious about something. They are surprised by the presence of this diver in their world. You can use some comforting colors to calm the fish.
Easy Under The Sea Coloring Page

An easy illustration showcasing many of the animals you can find under the sea. Can you identify some of these animals? There are whales, dolphins, and sharks swimming, among several smaller fish, while on the seabed, you can find some starfish and a crab.
Colorful Under The Sea World

Here’s an underwater illustration that will look magnificent once you are done coloring it. The fish come in different shapes and designs, just as varied as the corals under the sea. Print this coloring page and fill it with a kaleidoscope of colors.
Fish Family Enjoying Sunlight Under The Sea

A parent fish is teaching her children how to enjoy the warmth of the sunlight even under the sea. The sunlight reaches the shallow layers, making it possible for this fish family to swim safely among the corals.
Fun Above And Under The Sea

A detailed illustration showing all the fun you can have when you are at sea. You can laze around lying on a floater, or go snorkeling, or wear a scuba suit to experience walking on the seabed, witnessing the wonders of the sea.
Humpback Whale Coloring Page

This is a humpback whale, with its characteristic body shape, on its migration route. It seems to be too focused on its journey to notice the other sea creatures around it. Reaching 14 to 17 meters in length, humpback whales have long pectoral fins, which aid them in swimming.
Humpback Whale Under The Sea

It looks like this humpback whale is performing some acrobatic, along with the dolphin. Both these creatures often come to the surface to breathe and engage in peculiar surface behaviors like leaping and breaching the surface, making them popular among marine enthusiasts.
Mermaid Under The Sea

Known in folklore and engraved in popular culture, mermaids are mystical creatures with a female human upper body and a tail of fish. Here we have a cute little mermaid interacting with sea creatures on this coloring page.
Mermaid With Dolphin

Listening to every creature with an open heart and ears, this little mermaid hugs a dolphin to comfort him. He had been feeling lonely on this side of the sea and needed a friend. Offer him some warmth with your coloring skills.
Ocean Animals Get Together

Looks like some of the animals under the ocean are having a get together. Print this coloring page and fill in colors for each one of them, starting with the turtle on the top left. Don’t forget to add some colors to the vegetation and corals.
Ocean Animals Coloring Page

There are six different types of popular animals you can find in the ocean. The top row comprises striped bass, like fish, colorful globular fish, and an adorable dolphin, while at the bottom, there’s a shark, a flatfish, and an octopus.
Octopus Holds Deep Sea Meeting

Octopuses are one of the most intelligent sea creatures, and here’s an octopus conducting a deep-sea meeting with her assistant seahorse. They are overseeing the sea animal traffic of fish and crustaceans, ensuring safety from big predators.
Sunbathing Sea Animals

The ocean or the sea surface gets the most sunlight, and as the rays penetrate deeper, the intensity decreases, but not for these sea creatures living in the shallow sea area. Look at them, basking in the warmth of the sunlight.
Sea Animals Happily Living Together

Here is a group of sea animals peacefully living together, even as they share the same underwater ecosystem. You can see their joy by simply looking at their expressions, especially the octopus and the turtle.
Stingrays Under The Sea

One of the many uniquely looking sea creatures is stingray, a type of cartilaginous fish. They use their flattened bodies to hide and feed on the bottom, just like these two stingrays going down to feed while another comes up happily after a meal.
Submarine Sea Exploration

These tourists were not keen on getting into the water; that’s why they decided to explore the sea comfortably from inside the submarines, gazing excitedly at the animals.
Treasure Chest Under The Sea

The ocean floor often ends up becoming a new home for things lost at sea. Just like this treasure chest, most probably part of a ship wreckage. Highlight the gold coins and jewels using a combination of yellow and orange colors.
Marine Turtle Under The Sea

Here’s a sea turtle going about its usual day under the sea. Turtles have shells comprising a domed upper carapace, an underside flat plastron, and streamlined limbs for faster swimming.
Shark Creates A Frenzy Under The Sea

The appearance of a shark has created a frenzy under the sea in this illustration. The fish quickly moves towards the bottom, while the squid dashes off. The eel, however, is aggressively defending itself, baring its teeth.
Cinematic Sea World Coloring Page

Every inch of this coloring page has detailed work, whether it’s the wreckage of a ship and treasure chest or the sea creatures and corals. This intricate sea illustration is perfect for those with expert coloring skills.
Fish Swimming Among Colorful Corals

Here’s an illustration waiting for an explosion of colors from you. Both the fish and the corals feature an attractive mix of colors. You can use your imagination to give them a color combination of your choice.
Under The Ocean Coloring Page For Preschool

This is a simple illustration of a dolphin and a starfish meeting under the sea. The easy lines and minimal details make this perfect for preschoolers.
Harmonious Sea Ecosystem

A harmonious scene is unfolding under the sea on this coloring page. A quiet and peaceful moment when all the sea creatures are peacefully coexisting. You can add appropriate colors for each animal, including the seahorse.
Seabed Coloring Page

This is how the sea or ocean floor looks with its sand and boulders, slopes, and depths. Add a vibrant combination of colors for all the elements illustrated here, including the various corals.
Thriving Ecosystem Under The Sea

The uninhabited remote island surrounded by calm sea water makes it seem like everything is peaceful. When you break through the surface, you discover a thriving ecosystem that exists under the sea, as illustrated here.
Dolphin Going To The Surface

This dolphin has spent enough time underwater, about 10 minutes, and is now heading up to the surface. It’s time for them to breathe by blasting stale air from their blowhole and taking in fresh air into their lungs.
Ship Sways With Sea Waves

The ship sways with the moving waves of the sea, as it makes its way to the island. Under the sea, the plants are moving in tandem with the current, while the animals calmly swim around.
A Giant Pearl Under The Sea

An oyster takes the center stage in this illustration, surrounded by calm, mostly sleeping sea creatures. Add majestic colors to the giant pearl, the open oyster, and other elements on this coloring page.
Cunning Shark Among Cute Sea Animals

A cunning shark with a snarky smile has made its way into a group of cute animals. While the flounder, the octopus, and the seahorse look cautious, the pufferfish, being poisonous, is carefree, knowing it’s not in danger.
Scary Fish

This illustration of sea creatures, including the scary fish and the undersea world of corals, is perfect for kids at an intermediary level of their coloring skills.
With that sunny illustration, we have reached the end of today’s wondrous collection of 30 Under The Sea/Ocean coloring pages. I hope it was as much fun for you to color these otherworldly sea illustrations as it was for me to bring together this collection. Have you ever explored the sea or the ocean? Share some anecdotes with me in the comments section below. I went scuba-diving once, saw the fish and the corals; it was a scary yet amazing experience.
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