Sea Urchin Maze
A real, solvable maze shaped like a sea urchin — generated by algorithm, verified to have a single solution, and free to print. Start at the red flag and find your way to the checkered flag.
Free for personal & classroom use. For commercial use — products, KDP books, or resale — get a Commercial License.
- Difficulty
- Medium
- Best for ages
- 6+
- Est. solve time
- 8–15 min
- Grid
- 150×123
- Solution path
- 613 cells
- Corridor cells
- 7,245
- Dead ends
- 879
- Solutions
- 1 (verified)
About the Sea Urchin
A sea urchin is a round sea animal covered all over in sharp, movable spines that keep it safe from predators. Underneath the spines it creeps slowly across the seabed on tiny tube feet, grazing mostly on algae. Sea urchins are cousins of the starfish and sand dollar. Use this in a tide-pool unit and trace the path in between the spines.
- A sea urchin's sharp spines protect it from predators.
- It grazes on algae and moves on tiny tube feet.
- Urchins are related to starfish and sand dollars.
Solution
How to use this maze
- Start at the red flag and trace a path to the checkered flag — there is one correct route.
- Print on A4 or US Letter at 100% scale; the solution image above is the answer key.
- Free for classroom, homeschool, and personal printing.
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