Ruth Harman and her son have started the Haddenham Rock Snake in Sheerstock.
The idea is that families paint rocks and add them to the line.
The snake is located between 44 & 70 Sheerstock.
Says Ruth: "There have been several in other area in Aylesbury Vale that have grown really big.
We thought it would be a fun activity in the run up to the kids going back to school!"