Can anyone help translate and figure out what this event was?
http://afroand.co/pieslider/

A pie slide, seriously? I have to take a trip to Japan one of these days... No pics of the event though...

All I could find...

There's a whole Facebook album of this event:

https://m.facebook.com/afromancefp/photos/?tab=album&album_id=2626980064011130

What do you specifically want to know? I'm rusty, but I can take a crack at it. Translating the ENTIRE thing would take me awhile as I'm bad with kanji and they don't have kana pointers.

What English is on that link you provided indicate it was a birthday party on "Pi Day"