When setting off on a countryside walk, you'd anticipate breathtaking scenery, local wildlife, and the peaceful quiet of the countryside. Yet one explorer got considerably more than they bargained for after discovering mysterious symbols etched into stone whilst wandering through the Scottish Borders .

Stunned by what they'd found, they shared on Reddit : "I found this carving on a rock in a country estate on the Scottish Border. It shows the Roman numerals XVIII, two circles, one has a plus symbol in it and one has a minus symbol. From what I can tell the other characters are an anchor, a snake and a diamond shape. I used a stick to remove the moss and there doesn't appear to be any additional carving inside the diamond shape.

"The picture shows the correct orientation of the carvin

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