Celebrated on March.14th each year, Pi Day (3.14) is one of my favourite Geek-Dates on the calendar.
In mathematics, Pi can be approximated with the fraction 22/7, so why not celebrate "Approximately Pi Day" as well? 
Join me at Neighbourhood on Tuesday 22 July from 12.30pm for the usual caching conversation and/or a meal.
Note, this is the venue I moved my Pi Day event to a few years ago after the cafe under my work went MIA for a few weeks...
From memory, the venue and the good value food was well recieved.