I chatted with the skibums4ever at the Beach Friday along with Bazzer. I ski with them occasionally at Mammoth. They arrived late in the week, skied Keystone Thursday and Breck most of Friday. They arrived at the Beach around 3PM because that is when they thought the party was. My guest Richard skied Keystone Friday and missed the party because we also thought it was at 3PM. I found out it was lunch when I saw it being prepared at noon. No cell service at A-Basin, so no way to pass the word along.
Thanks for pointing that out. I'm not sure we ever said what time it would be, because it is so ingrained in my worldview that beach parties start when you arrive, and end when you leave, and you can ski or not in between. ;-) I didn't even think about it. Sorry.