Just fewer than thirty people took part in the 2013 Sydney No Pants Subway Ride.
Before the train ride everyone assembled near the Anzac memorial in Hyde Park where organiser Damian briefed those taking part as to what the plan was and how to behave, etc.
Everyone then walked to Central Station and waited on the platform to catch the train to North Sydney Station.
Once on the train those taking part waited for Damian to take his pants off first, which was to be the prompt for everyone else to follow his lead.
There was a sense of suspense and excitement. The train was quite full with passengers.
On seeing or discovering that Damian had removed his pants everyone then did the same.
Passengers sat with bemused expressions and chatted amongst themselves, trying to work out what was going on.
Those taking part tried to act normally, some reading books.
A few stops later the train arrived at North Sydney train station. Everyone got off the train and walked up the stairs, across and down the escalators to the platform to catch the train back to Central Station.
There were a few police at the station with a sniffer dog looking for drugs, but they did not seem to mind the No Pants Subway Riders turned up and just led the dog round to check everyone.
Everyone boarded the train for the return trip back to Central Station. This time everyone was more spread out around the train.
At the end everyone posed for a couple of group photos at Central Station, before some headed to Bar Broadway for a drink - still with no pants.
More images of the Sydney No Pants Subway Ride can be seen here
The first Sydney no pants subway ride
took place in 2009, but Adelaide held the first ever Australian no pants subway ride in 2008.
The event was started in New York in 2002 by Improv Everywhere
and has since spread to about sixty cities around the world.
The Sydney No Pants Subway Ride website
What we try to do is simply make people smile – Nothing more. Nothing less.
An event where normal conventions can be tossed aside.
A chance to break free from the shackles of an everyday mundane existence.
Pure, random fun - Where the only cause is “just because”.