BART riders on Sunday might want to prepare themselves for some unusual sightseeing.
The annual "No Pants Day" is upon us.
The bizarre tradition, which finds its origins on the East Coast, asks participants to show up on BART without – you guessed it – pants.
In previous years, droves of devoted celebrators followed the dress code to a T, giving unsuspecting BART riders quite a shock.
Event organizers require participants to keep a "straight face" when met with quizzical looks, according to the event invitation on Facebook. Apparently, this is often the most difficult part of the challenge.
Attendees will meet at one of two destination points – Daly City station and the Downtown Berkeley station – around 2 p.m. before heading to Yerba Buena Gardens in San Francisco. Afterwards, pantless partygoers can keep the festivities going by joining an optional jaunt to the Mission District for burritos.
About 600 people take part in the festivities each year, according to SFGate. Though reports have differed on the origin date for the West Coast iteration, most say it started around the year 2000.