When each summer comes by we all go to the beach, some of us go there to take a swim, some of are looking to get that perfect tan. You might take your kids with you, and you must have remembered that some day when your were a kid you must have dug through the sand to build a sand castle or just to dig a plain hole that usually gets filled by the oceans waves. But have you ever wondered how far you can dig down the beach sand ?
Well to answer this question we must refer to basic geology. Sand is just a bunch of finely grounded rock material and it rests on a layer of different types of rocks. For the most part, you may often find them to be similar to the kind of sand above it. In most cases, digging under the sand will take at least 10 ft until you find rocks.
But it truly depends on the area, since the earth has experienced many rises and fall of sea level over millions and millions of years therefore some areas may have different sediments, so you might find metamorphic rocks, mud stone, or just plane fossils. The only way to find out is by inspecting the underneath the sand which if you do actually go beyond 10 ft, authorities may have trouble with you since it's considered somewhat illegal in some countries to dig under the beach sand without any special certificate.
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