LONDON (AP) – All hail the rising sun.

A seemingly curious alliance of druids, pagans, hippies, local residents and tourists gathered around a prehistoric stone circle on a plain in southern England to express their devotion to the sun, or to have some communal fun.

With many of those present clad in an array of colorful costumes and even antlers, they stayed and celebrated at Stonehenge for the night and greeted sunrise on Wednesday, which is the longest day in the Northern Hemisphere.

WILTSHIRE, ENGLAND – JUNE 21: Rebecca turns her face towards the sun at Stonehenge on June 21, 2023 in Wiltshire, England. In the Northern Hemisphere, the longest day of the year falls on the 21st of June. This day is often referred to as the Summer Solstice or Midsummer’s Day. (Photo by Finnbarr Webster/Getty Images)

WILTSHIRE, ENGLAND – JUNE 21: Visitors welcome the sun at Stonehenge on June 21, 2023 in Wiltshire, England. In the Northern Hemisphere, the longest day of the year falls on the 21st of June. This day is often referred to as the Summer Solstice or Midsummer’s Day. (Photo by Finnbarr Webster/Getty Images)

At dawn, the sun rose behind what is known as the Heel Stone in the northeast part of the horizon and the first rays shone into the heart of the stone circle.

The sky was clear – not always the case during an English summer.

All over the U.K., optimism will reign supreme as summer officially starts. It’s no coincidence that the nearby Glastonbury Festival, one of the world’s biggest music events, opens its doors on Wednesday, too. Both Stonehenge and Glastonbury supposedly lie on ley lines – mystical energy connections across the U.K.

For the thousands making the pilgrimage to Stonehenge, approximately 80 miles (128 kilometers) southwest of London, it is more than looking forward to Elton John at Glastonbury or a few ciders in the sun. Many of those present at Stonehenge will be making the short 50-mile (80-kilometer) journey further west to Glastonbury over the coming days.

For druids, modern-day spiritualists linked to the ancient Celtic religious order, Stonehenge has a centuries-long importance, and they performed their rituals around the solstice in their traditional white robes. It’s effectively all about the cycle of life, of death and rebirth.

This year, the summer solstice at Stonehenge started at 7 p.m. Tuesday and ran through 8 a.m. Wednesday. For this one night, worshippers are allowed to spend time inside the stone circle. Some chanted or played their acoustic guitars or banged their drums. Alcohol was prohibited, as were sound systems. Blankets were allowed, but no sleeping bags, please. And definitely, no climbing on the stones.

People gather at sunrise to take part in the Summer Solstice at Stonehenge in Wiltshire. Picture date: Wednesday June 21, 2023. See PA story SOCIAL Solstice. Photo credit should read: Andrew Matthews/PA Wire (Photo by Andrew Matthews/PA Images via Getty Images)

WILTSHIRE, ENGLAND – JUNE 21: Visitors welcome the sun at Stonehenge on June 21, 2023 in Wiltshire, England. In the Northern Hemisphere, the longest day of the year falls on the 21st of June. This day is often referred to as the Summer Solstice or Midsummer’s Day. (Photo by Finnbarr Webster/Getty Images)

The rules have been tightened over the decades, certainly during the coronavirus pandemic. Back in the less-restrained past, tens of thousands would travel by foot, car, bus or motorcycle to worship at the solar temple, or just have a bit of fun.

Stonehenge is a symbol of British culture and history and remains one of the country´s biggest tourist draws, despite the seemingly permanent traffic jams on the nearby A303 highway, a popular route for motorists traveling to and from the southwest of England.

Stonehenge, one of the world´s most famous prehistoric monuments and a World Heritage Site, was built on the flat lands of Salisbury Plain in stages starting 5,000 years ago, with the unique stone circle erected in the late Neolithic period about 2,500 B.C. Some of the stones, the so-called bluestones, are known to have come from the Preseli Hills in southwest Wales, nearly 150 miles (240 kilometers) away, but the origins of others remain a mystery.

The site´s meaning has been the subject of vigorous debate, with some theories seemingly more outlandish, if not alien, than others.

English Heritage, a charity that manages hundreds of historic sites, notes several explanations – from Stonehenge being a coronation place for Danish kings, a druid temple, a cult center for healing, or an astronomical computer for predicting eclipses and solar events.

The charity said the most generally accepted interpretation “is that of a prehistoric temple aligned with the movements of the sun.”

After all, the stones match perfectly with the sun at both the summer and winter solstices.

WILTSHIRE, ENGLAND – JUNE 21: Visitors welcome the sun at Stonehenge on June 21, 2023 in Wiltshire, England. In the Northern Hemisphere, the longest day of the year falls on the 21st of June. This day is often referred to as the Summer Solstice or Midsummer’s Day. (Photo by Finnbarr Webster/Getty Images)

People gather during sunrise as they take part in the Summer Solstice at Stonehenge in Wiltshire. Picture date: Wednesday June 21, 2023. See PA story SOCIAL Solstice. Photo credit should read: Andrew Matthews/PA Wire (Photo by Andrew Matthews/PA Images via Getty Images)

WILTSHIRE, ENGLAND – JUNE 21: People walk in a field as the sun rises at Stonehenge on June 21, 2023 in Wiltshire, England. In the Northern Hemisphere, the longest day of the year falls on the 21st of June. This day is often referred to as the Summer Solstice or Midsummer’s Day. (Photo by Finnbarr Webster/Getty Images)