The meeting is in Room 138 in Queen Anne Court, in the new Greenwich Maritime Campus, which was formerly the Naval College. It is 5 minutes walk from Greenwich or Maze Hill rail stations, or Greenwich DLR (Cutty Sark) station.
Transport: Connex South-East trains call at Greenwich station or at Maze Hill station (one stop further, but slightly closer), leaving every 15-20 minutes from Charing Cross, Waterloo East and London Bridge, and in peak hours from Cannon Street. They take about 20 minutes. DLR trains stop at Greenwich and at Cutty Sark (also slightly closer). From North Greenwich Jubilee Line station you can take any Greenwich-bound bus (journey time about 10 minutes, frequency every 5 minutes)
The cheapest fare option is to buy a three-zone capital card which covers the train and the underground for all sections of the journey.
In the evening it is best to access the site from Park Row, at its East End. To reach Park row, walk Eastwards from Greenwich centre, either along Romney Road (which becomes Trafalgar Road after the first 400 yards) and turn left at the end of the campus or along the river, turning right when you reach the Trafalgar Tavern. Alternatively, alight at Maze Hill station, walk to Romney Road (Trafalgar Road), turn left and then right at Park Row.
The room is in the Queen Anne Court, one of four buildings inside the main campus, which is on your right as you enter from Park Row. Room 138 is on the first floor. The attached Site Map may help