Blue Lagoon, Iceland

Senegal's Lake Retba, or as the French refer to it Lac Rose, is pinker than any milkshake. Experts say the lake gives off its pink hue due to cyanobacteria, a harmless halophilic bacteria found in the water. Lake Retba has a high salt content, much like that of the Dead Sea, allowing people to float effortlessly in the massive pink water.

Stunning blue waterfall

Blue Lagoon, Iceland

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Lagoon

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The Blue Lagoon geothermal spa is one of the largest attractions in Iceland.

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“Blue Lagoon,” Iceland's famous geothermal spa