Resting slightly tilted on a sandy hill, this old, rounded submarine has its hatch open, with a small, smiling fish peeking curiously out, three large round portholes lined up along its hull. Our submarine coloring page captures exactly this peaceful resting place, and you can print it for free right away.
Why This Design Invites Dreams of Research Expeditions
A submarine on the ocean floor instantly sparks a young explorer's imagination: where might this vessel once have traveled, and what did its crew discover along the way? The smooth, large surfaces of the hull and the three round portholes leave plenty of room to color, while the little fish in the hatch adds a lovely extra detail.
Resting tilted in the sand
Peeking from the hatch
White on the inside
Growing on the hull
🖨️ Step-by-Step: How to Print Perfectly
Click "Print Now" and set your printer to black & white to save ink!
Use thicker paper (100–120gsm) for markers so colors don't bleed through
A quiet spot with good light — a washable tablecloth is gold for little artists!
Tell each other what a real research submarine has actually discovered!
🔬 Fun Facts About the World's Most Famous Research Submarine
While your child colors, here's a great moment for a little story: there's a very special little research submarine called Alvin, in service since the 1960s and still considered one of the most important tools in all of deep-sea research today. With Alvin, researchers made one of the most significant discoveries in all of marine biology back in 1977, finding hot vents on the ocean floor for the very first time, surrounded by completely new, previously unknown communities of tube worms, crabs, and clams, living without any sunlight at all. Just eight years later, that same small submarine helped locate the famous wreck of the Titanic deep on the floor of the Atlantic. To this day, Alvin has completed over 5,000 dives, having been repaired and upgraded again and again along the way, making it one of the longest-serving research submarines in the entire world. Anyone who wants to learn more about the fascinating history of this small submarine can explore the Alvin article on Wikipedia together.
🎨 Creative Idea: What to Do with the Finished Picture?
Is the submarine all colored in? Think up the three most exciting things your own little submarine might discover in the deep sea! ✂️
🎨 Which Colors Suit the Old Submarine?
An old, well-used submarine can wear bold but slightly weathered colors! Here are our favorite color ideas for little artists:
For the hull
For the hatch
For the seaweed leaves
For the ocean floor
💡 Coloring Technique Tip: Leave a few small patches on the hull a bit lighter, as if rusted, to make the submarine feel even more real and well-traveled.
📅 When Is This Coloring Page a Great Fit?
This design is a true all-rounder — here are our favorite occasions:
An exciting design for little explorers
Perfect for a real research submarines topic
For budding young scientists
A calm coloring project
🚢 Fun Facts About Research Submarines for Kids
While your child colors, read these facts out loud — kids love nature trivia!
Back in 1977
Back in 1985
Still active today
Since the 1960s
🪸 Discover the Whole Ocean World!
The submarine fits perfectly with our collection of mysterious deep-sea designs! Combine several coloring pages and build a whole ocean world:
🌊 Discover more from the ocean world:
🏫 Ideas for Preschool, School, and Home
This design works wonderfully as a starting point for small projects about research, perseverance, and discovery. In preschool, the picture pairs beautifully with a little role-play, where kids imagine being researchers riding along in a submarine themselves. In elementary school, this design makes a great introduction to a topic about real deep-sea research and important discoveries, while at home it serves as an occasion to talk about the value of perseverance in long-term projects.
Role-play: a researcher riding in a submarine
An intro to real deep-sea research
Talking about perseverance in long projects
🔬 What the Submarine Teaches Us About Perseverance
The fact that one small submarine has been repaired and upgraded again and again for over 60 years, and still enables important discoveries today, shows kids, in a vivid way, how much can be achieved with patience and long-term dedication. This little story can help kids understand that the greatest discoveries often aren't made overnight, but are the result of years of persistent, ongoing effort.
🎨 A Note on Coloring Weathered Metal
A hull that's meant to look genuinely old benefits from a slightly uneven finish rather than one flat, even tone across the whole surface. Scattering small random patches a shade lighter or darker across the metal, as if decades underwater had worn it unevenly, does far more to suggest age and history than extra lines or details ever could, and it's a technique worth remembering for any well-traveled object in a picture.
Your Benefits at PureSketchy:
- Thick Outlines: Clear lines, perfect for little hands.
- Free to Print: Over 500 designs available instantly, no sign-up required.
- Safe & Fast: Instant access to PDF-optimized WebP previews.
- Suitable for All Ages: An exciting, kid-friendly design.
Frequently Asked Questions (FAQ)
What age is this coloring page suitable for?
The submarine works for kids of all ages — the clear shapes suit every age group well.
Is the download free?
Yes, all coloring pages on PureSketchy are 100% free for personal use, preschools, and schools.
Which coloring tools work best?
For the hull, we recommend bold colored pencils in blue and orange tones.
Did a real submarine really help find the Titanic?
Yes, the research submarine Alvin really did help locate the famous wreck of the Titanic back in 1985.
Is there a German/English version?
Yes! You can find the German version at Ausmalbild Altes U-Boot liegt auf dem Meeresgrund.