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https://secure.wikimedia.org/wikipedia/ ... _Cristales
Étonnant non

C'est vraiment la tanière de Superman !The cave is extremely hot with air temperatures reaching up to 58 °C (136 °F)[2] with 90 to 100 percent humidity. The cave is relatively unexplored due to the extreme temperatures and high humidity.[3] Without proper protection people can only endure approximately ten minutes of exposure at a time.