The NYC Secular Solstice this year will be at Ida Lang on December 9th. The East Coast Rationalist Megameetup will be at the Holiday Inn Brooklyn Downtown from the evening of December 8th to the morning of December 11th. Normally I wouldn't bring up a meetup in NYC on the Boston list, but this one is designed in large part for attendees from a wide area. Despite the name, people are welcome to come from anywhere- we usually have a couple of Californians and a European or two. We've upgraded the venue from previous years due to feedback about wanting more space, so this is a bit of an experiment.
Tickets for Solstice, overnight space at the Megameetup, and passes for the Megameetup Day Events are all present at
rationalistmegameetup.com.