5 Places You Won’t Ever Want To Go Swimming – Swim At Your Own Risk

Horseshoe Lake

The gas levels at the lake fluctuate unpredictably. A family could have a picnic on the lake one year and be asphyxiated the next. Warning signs are posted around Horseshoe Lake to inform visitors of the danger. Carbon dioxide is heavier than air, making lower areas such as depressions in the ground, or the shore and surface of the lake much more dangerous.