Main Entrance - National Hall Entrance: General Entry (This includes diamond pass holders unless you also have a gold pass).   YALC Entrance - Central Hall Entrance: YALC ticket holders, Gold Pass holders & Disabled Attendees.   Floor Plan: There are both stairs and lifts between each level, the links below show these... http://olympia.london/organising/seven-venues-connected LEVEL 3: Conference Centre   LEVEL 2: Central Hall     LEVEL 1: West, Central and National H