The summer solstice, 21 June, is one of the most important dates in the calendar for many followers of ancient religions, and it's a special time for people in Greece who worship the country's pre-Christian gods.
"I love the energy this place has," says Exsekias Trivoulides who has pitched his tent on what he considers to be the holy site of Mount Olympus.
Trivoulides is a sculptor who studied art history and classics, and these days, he is living his passion.
Along with a few thousand others he is taking part in the Prometheia festival, which celebrates the ancient Greek hero Prometheus, who helped humans by stealing fire from the gods.
It's the most important annual festival for followers of The Return of the Hellenes – a movement trying to bring back the religion, values, philosophy and way of life of ancient Greece, more than 16 centuries after it was replaced by Christianity.
These people consider Greece to be a country under Christian occupation.
Written By: Matthew Brunwassercontinue to source article at bbc.co.uk