How to Draw an Underwater Scene: Easy 10-Step Guide

Bring the ocean to life with this fun, screen-free drawing activity perfect for artists ages 5 and up. You only need a pencil, an eraser, and some paper to build a complete marine habitat. Follow along to master basic shapes and layering techniques that make your underwater world pop.

10 Steps

🎯 Final Result

Colorful and complete underwater scene illustration showing fish, coral, and sea life.

Step-by-Step Instructions

Step 1: Sketching the Seafloor

Pencil sketch showing overlapping wavy lines forming the sandy ocean floor base.

Start by drawing a series of overlapping horizontal curved lines across the bottom of your page. Tip: These lines represent the sandy ocean floor; keep them loose and wavy to mimic natural sand dunes.

Step 2: Creating Underwater Plateaus

Drawing of rocky underwater plateaus using cloud-like shapes and vertical lines.

Draw cloud-like shapes using connected 'U' lines, then pull a line straight down to the seafloor from each bulge. Tip: This creates depth and height, making your drawing look like a 3D rocky reef.

Step 3: Adding Staghorn Coral

Sketch of branching staghorn coral added to the rocky reef base.

Draw branching coral by using curved lines that double back on themselves. Tip: Don't worry about making them perfect; coral grows in irregular, organic patterns, so let your hand be relaxed.

Step 4: Drawing Sea Anemones

Detailed sketch of a sea anemone with tentacle-like structures on the reef.

Create an anemone by drawing pairs of curved lines topped with stacked, inverted 'U' shapes. Tip: These represent the stinging tentacles—draw them close together to make the anemone look full and fluffy.

Step 5: Adding Seagrass and Sponges

Sketch showing tall seagrass blades and cylindrical sponges added to the scene.

Draw tall, pointed blades of seagrass and cylindrical sponges in the background. Tip: Vary the height of your seagrass blades to create a more natural, wild look in your ocean garden.

Step 6: Adding Stones and a Starfish

Sketch of a textured starfish and small stones resting on the sandy seafloor.

Add small stones using 'Y' shapes and a five-pointed starfish with rounded tips. Tip: Add small dots to the starfish to give it a realistic, bumpy texture.

Step 7: Drawing Tropical Fish

Sketch of various tropical fish swimming above the reef.

Outline fish bodies with curved lines, adding pointed or rounded fins. Tip: Give your fish personality by drawing different eye shapes and adding stripes or scale patterns.

Step 8: Adding a Jellyfish

Sketch of a jellyfish with long, flowing tentacles added to the scene.

Draw a large 'C' shape for the jellyfish bell, then add flowing tentacles beneath it. Tip: Make the tentacles wavy to show movement, as if they are drifting in the ocean current.

Step 9: Adding Bubbles

Final line art of the underwater scene with bubbles added throughout.

Fill empty spaces with small circles of varying sizes. Tip: Don't overdo it! A few bubbles here and there create a sense of life without cluttering your drawing.

Step 10: Bringing Your Scene to Life with Color

Fully colored underwater scene featuring bright fish, coral, and a jellyfish.

Add color to your masterpiece! Use vibrant oranges for the fish and coral, and soft blues for the water. Tip: Use light pressure with your colored pencils to create gradients, making the water look deeper at the bottom.