But there is plenty for the less physically ambitious to do as well, including taking a walk through the Valley of the Moon near sunset (the salt rock formations can be heard popping and crackling with temperature swings), visiting flamingo-dotted salt lakes, swimming near the El Tatio geysers, or stargazing at Explora's own observatory.

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An outdoor jacuzzi in the desert valley is the perfect place to sip champagne and watch the sunset.

BBC: The Negev desert wine route

Strauss presents a clever dichotomy in "At Sunset": The lovers are earthbound, strolling through a valley, but the music takes flight into the fading sky.

NPR: Richard Strauss: Perfecting the Swan Song