Cherry Blossom
In these days the Cherry Blossom season reaches Tokyo coming from the south... I have been in Tokyo for that event in 2006 (more or less coincidentally), and two pictures are below. There seems to be tradition to send out junior people from a company to reserve space underneath the trees, and at lunch time the co-workers show up and celebrate. One of the pictures below shows that event, in this case on a cemetery in Aoyama. Right now, interesting enough, the Google Maps satellite picture shows also Cherry Blossom (cached here, other pics here)...