Finally, winter is over, and it's almost speedo season, baby!

As temperatures start to climb, there's no better way to cool down than to take a dip in the pool.

But be careful because not all bodies of water are made for swimming.

Some of these lakes, rivers, and pools may look inviting, but taking a dip in them

might be the last thing you ever do. From pretty pools that are actually brimming with acid

to flooded holes that are impossible to escape, let's dive into some swimming spots you

should approach with caution and others that you shouldn't approach at all.

You're listening. You're listening to be amazed.

What do you know about Tanzania?

That it's in Africa? That it's home to some amazing wildlife?

That it has a 490 square mile body of water which can turn living things to stone?

Wait, what was that last one?

That sounds like something out of a fairy tale.

But believe me, it's real. Lake Natron is located in a part of Tanzania that's so hot, it loses most of its water to evaporation.

This leaves salty mineral-rich remnants to crust over the lake bed

with salt-loving microorganisms that sport a deep red pigment thriving on what the water leaves behind.

However, the water that does remain is so saturated with salt that migratory birds who stop for a refreshing bird bat suddenly

find themselves coated in salt crystals.

Once they calcify, these salty layers trapped the poor creatures in a matter of minutes,

mummifying them alive.

Okay, so not exactly stone, but close enough.

Though that's not even the worst part.

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