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PARIS - Suddenly, the world is plunged into an eerie, violet darkness. The temperature drops. Birds and other animals, bewildered by unforeseen night, start behaving strangely. Stars and planets appear in the sky next to the blotted-out Sun.
It is this awe-inspiring experience that will draw people from all over the world to northern Spain next week in the hope of witnessing a total solar eclipse.
"It feels like it's the end of the world... you're changed forever if you see one," said Elizabeth Warning, one of four self-described "eclipse-chasers" who spoke to AFP ahead of the August 12 event.
However, with devastating fires still raging in some areas of Spain where the eclipse will be visible, the 51-year-old TV researcher may cancel her plans to travel from Sydney, Australia.
"It's very sad," Warning said. But as an Australian well-versed with the threat of bushfires, she said her heart went out to people in Spain mourning "lost houses and lost loved ones".
She is just one member of a small but growing community who plan holidays around seeing total solar eclipses, which take place every year or two.
Witnessing these remarkable events often requires intricate and expensive travel plans. However the total eclipse in Spain -- the first visible in mainland Europe this century -- is an easier trip than some in the past.
'Adrenaline rush'
Ryan Milligan, a solar physicist at Queen's University Belfast in Northern Ireland, has travelled for 12 different eclipses, to places as far-ranging as Siberia, Chile and the Faroe Islands.

Eclipses happen when the Moon passes directly between the Sun and Earth, casting a narrow band of shadow across our planet
Then once the brief thrill is over, the chasers start planning for their next hit.
"It's a very expensive, very odd addiction," Warning said with a laugh.
Lucie Green went all the way to Antarctica in 2021, only to be thwarted by that common enemy of eclipse chasers: clouds.
"I've got about a two-thirds success rate," said the solar physicist at University College London.
Sometimes it works out. Warning described how the "the clouds parted" at the last second in the Faroe Islands in 2015, allowing her to see an eclipse that people just hundreds of metres away missed.