I'm a Co-Chair, with Daniel Gullo, of this event. 

It's sponsored by the Scrum Alliance and is a 3-4 day event focused on deep-dive discussions of agile coaching related topics.

• October 27-28 will involve a couple of TBD 2-day workshops
• October 28-30 is the Retreat proper

It will be held at The Friday Center in Chapel Hill, NC

More information on the Scrum Alliance site here.
Marriott hotel(s) offering your special group rate: Courtyard Chapel Hill  for 12900 USD per night, register here.

Or email me if you have any questions...