LAGUNA NIGUEL – Train passengers can expect an eyeful Saturday as bare bottoms converge along the tracks at Camino Capistrano for the annual Mooning of the Amtrak.

In recent years, the rowdy atmosphere surrounding the event has quieted down with an increased police presence, parking restrictions and ordinances against urination, defecation and drinking alcohol in public.

In 2008, the 30-year tradition swelled to close to 10,000 revelers. Police shut down the event that year after witnessing public sex acts as well as urination and defecation. The following year, with new ordinances and more law enforcement, attendance dropped to about 1,000. Last year, a steady stream of mooners could still be found outside Mugs Away Saloon, though crowds didn’t reach more than 50 at any given time.

Click on the photo slideshow to see photos from past years and read more on how the Mooning has changed.

Contact the writer: ckoerner@ocregister.com or 949-454-7309