Bold sandcastle coloring page with five towers, beach flag, sun, waves, and seashells.

Sunny Sandcastle with a Waving Flag

A tall sandcastle rises between little waves and shells, with five chunky towers, arched doors, and a flag under the summer sun.

Free to print for personal and classroom use. This coloring page is part of the Summer collection, made for ages 2–4 and drawn in a Bold & Easy style.

🎨 How to color it

Color the sandcastle golden tan, the waving flag cherry red, the round sun lemon yellow, and the seashells peach and pink. Use chunky crayons to fill the big towers and sun first; it is perfectly okay if little hands go over the bold lines. Try making each wavy water line a different blue, like tiny stripes of sea around the castle.

🔢 How this color by number works

123456

Find each number in the key and fill its zone: 36 zones and 6 colors, sized for kids. Tiny unnumbered slivers borrow the color of their neighbors, and the little model above shows the finished page whenever you want to check your work. More grids like this live in our color by number gallery.

Prefer classic line art? Open this drawing as a regular coloring page.

The story behind this coloring page

The First Sandcastle Flag — By the warm tide pool, Nori patted wet sand: pat, pat, pat. She wanted the slow sea to see her castle before splash-time came. Read the full story →

By the warm tide pool, Nori patted wet sand: pat, pat, pat. She wanted the slow sea to see her castle before splash-time came. A curled shell sat nearby, shut tight and salty-smelling. Nori waited. The sun tickled her nose.

At last, the shell went plink! Out slid a tiny red ribbon. “Shh, secret,” Nori whispered, and tied it to the tallest tower. The sea saw it and waved back. Ever since, sandcastles wear flags; can you spot the shell that kept the secret?