The details about the daylong sunrise-to-sunset cache machine are in this forum discussion, but the official event is the after-machine dinner.
Dinner will be at 5:00 PM on Saturday, December 30, 2017 at Mazatlan, 720 W Wishkah St, Aberdeen. The coordinates are listed above. Note that there's two Mazatlan restaurants in town, both on Wishkah. This is the one on the west side of town. I expect we'll end around 7:00 PM.
Please log a "will attend" as soon as you know you'll be there. I'd like to give the restaurant an idea of how many of us will be there before we all show up.
Be sure to put this on your watch list now, so you'll be among the first to know about changes and updates as the big day approaches!