The event is being held at the Raddison hotel in Manchester NH. Rooms are reported to have been sold out for some time.

https://www.radisson.com/manchester-hotel-nh-03101/nhmanch

ADDRESS: 700 Elm Street Manchester, New Hampshire 03101
RESERVATIONS: +1 (800) 333-3333 ( US/Canada Toll-free )
TELEPHONE: +1 (603) 625-1000
FAX: +1 (603) 206-4000

 

Additional hotels in the are are running specials for Birka attendees:

Comfort Inn

ADDRESS: 298 Queen City Ave, Manchester, NH 03102
TELEPHONE: 1+ (603) 668-2600