The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes spelled out as "pi" (/paɪ/).
- From Wikipedia, the free encyclopedia
We will meet at the coords just outside the establishment and go in as a group.
The only question will be, do you get French Toast or Pi ? (you can have either)
Come join some local cachers for Saturday brunch. The event will start at 9am and run through 10am. Please come anytime during the event and meet some cachers, trade stories and TBs and of course indulge in French Toast (pancakes are also available).
(You don't have to indulge to attend)
Hopefully this will become a quarterly occurrence. 
UPDATE: On Feb 20th HQ announced not only one souvenir but two you can earn on 3/14/15. This event counts toward one! Check out this link for more info: 3.14.15 Pi Day