Hey everyone- this awesome, unique event is happening tonight...Bike around Boston with a hundred+ other people on bikes for a couple of hours when there are few to no cars on the roads, and see the sun rise at Castle Island (there's a sort of pot-luck breakfast.)  More details:

You need to have lights (front and rear), some visible clothing (ie light colored or reflective), spare tube for your bike, helmet, etc.

It's a crazy, long night- but from everything I've heard, totally worth it!