Westie, I think "Park and Ride" is the concept you're grasping for.
And for those who for whatever reason can't, there are garages under just about every Seaport hotel and office building that will likely have day rates.
I'm not just going to leave it there, though. Instead I'll do a Westie-style addendum to show you what the largest convention center in London has to say about traveling there:
HOW TO FIND US
The QEII Centre is located on Broad Sanctuary in Westminster, central London and can easily be reached by public transport. Our postcode is SW1P 3EE.
GETTING HERE BY TUBE
You can plan your tube journey and buy travel cards online using the Transport for London website.
Westminster Station (0.1 miles)
Lines: Circle, District, Jubilee
Exit the station via Exit 6 through the underground tunnel towards Parliament Square. You will come to street level on Whitehall. Turn left into Parliament Square, cross the road ahead of you then turn right into Broad Sanctuary. The Centre is on your right, directly opposite Westminster Abbey. (This is a step-free station.)
St James Park Station (0.1 miles)
Lines: Circle, District
Take the Broadway exit from the tube station and walk straight down Tothill Street. At the end of this street turn left and you will see the Centre directly in front of you. (This is NOT a step-free station.)
Victoria Station (0.7 miles)
Lines: Circle, District, Victoria
Exit from the front of the station, turn right and walk down Victoria Street. At the end of Victoria Street is Broad Sanctuary, the Centre is on the left, opposite Westminster Abbey. (This is NOT a step-free station.)
GETTING HERE BY BICYCLE
There are many cycle routes across Greater London. To plan the best route for you to get to The QEIICC visit the Transport for London cycle website.
GETTING HERE BY BUS
Buses 11,24,53,77a and 88 all stop at Parliament Square. The Centre is just to the west of the square, directly opposite Westminster Abbey. To plan your bus route, use the Transport for London journey planner.
GETTING HERE BY TRAIN
To plan your train journey to London you can use National Rail Enquiries.
There are three mainline rail stations within a mile of the Centre. These are Charing Cross, Victoria and Waterloo. To plan your travel from the other mainline terminals in central London (St Pancras International, King’s Cross, Paddington, Liverpool Street, London Bridge) use the Transport for London journey planner.
Walking from Charing Cross (0.7 miles)
Exit the front of Charing Cross Station and turn left towards Trafalgar Square. Turn left down Whitehall and continue until Parliament Square. Follow Parliament Square around to the right and turn right onto Broad Sanctuary. The Centre is on your right directly opposite Westminster Abbey.
Walking from Victoria (0.7 miles)
Exit the front of Victoria Station, walk across the bus stand area and turn right onto Victoria Street. Continue along Victoria Street until you reach Westminster Abbey. The Centre is on your left, directly opposite the Abbey.
Walking from Waterloo (1 mile)
Exit the station onto York Road. Turn left and walk to the roundabout with County Hall Hotel on your right. Cross York Road and take Westminster Bridge Road on your right. Cross the bridge to Parliament Square and follow Parliament Square around to the right. Turn right onto Broad Sanctuary. The Centre is on your right directly opposite Westminster Abbey.
St Pancras International - Eurostar
You can reach St Pancras International Station easily by public transport from Victoria Station. For more information on travelling on the Eurostar, contact National Rail Enquiries on 0845 7484950.
GETTING HERE BY AIR
It will take you 45 minutes to an hour to reach The QEIICC on public transport from any of London’s airports.
Travelling from Heathrow Airport
Approximate journey time: 1 hour
Take the tube to Green Park on the Piccadilly Line. Change to the Jubilee Line and stop at Westminster.
Alternatively take the Heathrow Express to Paddington, and then take the Circle Line tube to Westminster.
Travelling from Gatwick Airport
Approximate journey time: 45 minutes
Take the Gatwick Express to Victoria Railway Station. The Centre is a 15-minute walk from Victoria via Victoria Street.
Travelling from Stansted Airport
Approximate journey time: 1 hour
Take the Stansted Express to Liverpool Street and then take the Circle Line tube to Westminster tube station.
Travelling from London City Airport
Approximate journey time: 45 minutes
Take the Jubilee Line from the airport to Westminster tube station.
Travelling from Luton Airport
Approximate journey time: 48 minutes
Take one of the special connecting buses from the airport to Luton rail station. Take one of the frequent trains to Kings Cross, and from here take the Circle Line tube to Westminster.
GETTING HERE BY ROAD
Please be advised that it is quicker and easier to travel to The QEIICC using public transport and that we are within the congestion charging zone.
CAR PARKING
The Q-Park Westminster car park is located just a short distance from The Queen Elizabeth II Conference Centre in Great College Street, SW1P 3RX. For more information about the car park please visit their website: www.q-park.co.uk.