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In the UK, many of these signs are in old disused and flooded quarries and mines or reservoirs. The issue with any of these sites is they are typically incredibly deep (like 100m~) and become deep ...
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In the UK, many of these signs are in old disused and flooded quarries and mines or reservoirs. The issue with any of these sites is they are typically incredibly deep (like 100m~) and become deep ...