At 5 p.m. Eastern Time Friday, May 29, WhippleHill will be releasing any unused rooms in its blocks back to the Seaport Hotel and Renaissance Boston Waterfront Hotel. Rooms may be available at these facilities after that time, but they will not be eligible for the WhippleHill discount. However, rooms remain available with the WhippleHill discount at the Boston Park Plaza. Rooms are available for $219 per night if you book by June 12. This is the last deal on rooms WhippleHill can offer. The hotel is an inexpensive cab ride or brisk walk from the Seaport World Trade Center.