Happy Submarine with Bubbles Coloring Page

Add this submarine coloring page to your collection for children who love the sea. This Happy Submarine with Bubbles Coloring Page shows a round, smiling submarine with an open laughing mouth, a periscope bent forward like a little telescope and three bubbles floating up toward the top of the sheet. A porthole, a star flag and a four blade propeller complete the boat. It is a free printable submarine coloring page for kids from 3 to 9, ideal for an ocean unit, a bath time theme or a page to color while talking about what lives under the waves.

How this coloring page was created

We made this page in Colorin AI from a single prompt: "A cute submarine with a smiling face and a periscope near the bottom of the page, a trail of round bubbles rising all the way to the top". The print ready page took a few seconds. The submarine sits low on the sheet and the bubbles carry the eye upward, so the page has one solid shape below and open space above.

One word decided how the bubbles behave: "trail". The drawing lines them up in a path that rises from the periscope toward the top of the page, which reads as air escaping as the submarine moves, and the word "round" in the same phrase kept every bubble a perfect circle.

Why this submarine coloring page is special

The face takes up most of the front of the hull, and the open, laughing mouth with a little tongue gives this submarine more expression than most of the boats in this collection. It looks excited to dive, which makes it a fun character for children who are curious about the deep sea.

The body is one large oval with a few seams across it, so children can choose to color it as a single shape or treat each section as its own area. The bubbles are big round shapes that give the youngest artists an easy place to start.

Three bubbles rise above the periscope, the smallest at the top and the largest at the bottom, and each one has a small highlight circle inside. The periscope is a bent tube with two bands around it and an opening facing forward, standing on a low rounded tower with a rim. Along the top of the hull runs a row of nine rivets.

Next to the face sits a porthole made of two rings, and beside it a small flag with a star flies from a short pole drawn on the hull. A curved seam crosses the nose, two vertical seams mark the tail section, and a belt of panels runs along the underside. At the back, four rounded propeller blades fan out from a pointed tail.

Coloring Ideas and Techniques

Yellow is the classic submarine color, and it makes the face and the blue bubbles easy to tell apart. An orange or red belt along the bottom and a darker tail give the hull a finished look without much extra work.

The bubbles can be left white with a light blue edge, or colored in a soft blue that gets paler toward the top. A deep blue background behind the submarine turns the page into an underwater scene, and small fish can be drawn in the open space if a child wants to add company.

Frequently Asked Questions