London, July 11 (ANI): In an annual ritual, people in the southern Californian city of Laguna Niguel bare their bottoms at passing trains.
For the last 30 years, the city has hosted 'Mooning Amtrak' as crowds line a road along the railway tracks, drop their trousers every time a train rolls by.
As part of the ritual, up to 10,000 people participate, and visitors are encouraged to leave their cars at home and arrive by train.
The event has its own website, this year proudly headed "31st Annual Mooning of Amtrak". It also promoted a newer offshoot: "5th Annual Mooning of Metrolink".
It features directions to Camino Capistrano, the road where trousers and dignity are dropped each year, and helpfully lists trains times through the day, so that people can schedule their disrobing, reports the BBC.
And after 8pm, there is night mooning. "Bring a flash light with plenty of batteries, or better yet, bring a camping lantern," the website advises.
Each year the event grows, with crowds swelled by word of mouth and enthusiastic reports from radio DJs on local radio stations. (ANI)