WHEN YOU'RE IN ARCHWAY... YOU MAY WANT TO WEAR SENSIBLE SHOES AND ATTIRE AND GET INTO SOME ENDORPHIN HIGHS... HERE'S ONE WAY TO DO IT, BUT THERE ARE INFINITELY MORE WAYS...
http://www.youtube.com/watch?v=HHmM0NVocEU
An interactive, ever expanding open group with the purpose of stimulating endorphin rushes, also known as natural highs. Originating in London in 2007. Founded by artist Mary George, but owned by EVERYONE.