Thousands of runners will take to the streets for the Virgin Money London Marathon this month.
Held on Sunday April 23, more than 39,000 runners will take part in the annual event, cheered on by spectators.
From the route to where the toilets are, here is your ultimate guide to the 37th London Marathon.
Everything you need to know about London Marathon
What time will it start?
The mass race starts on Sunday 23 April at 10am.
What’s the route?
The 26.2 mile marathon route first goes through east London - including Greenwich and Woolwich, doubles back on itself, then winds through central London, and finishes in Westminster , near Buckingham Palace.
The last three miles of the race passes along the Embankment, turning right at Big Ben into Birdcage Walk and then past Buckingham Palace into The Mall to finish.
Where can I leave my baggage?
There will be PA systems at each start area which will tell runners when to put their kitbag onto the appropriate baggage vehicle in the start area.
Bags should then be handed in at the lorry with the number range which corresponds to your running number.
Staff on the lorries will only accept official Virgin Money London Marathon kitbags, so runners need to make sure they have stuck the self-adhesive running number label to the kitbag where indicated.
Runners will then be able to retrieve their kitbag from the baggage lorries after the finish.
Once runners have deposited their kitbag on the lorry, they will not be able to retrieve their belongings until they arrive at the finish.
Are there toilets?
Toilets are available at all the starts, at Mile 1 then every two miles along the course up to and including 24 miles.
Showers will be located at the following points: just before Mile 9, Mile 13, Mile 17, Mile 22 and at Mile 23.5.
Will there be drinks available on the way round?
Drinks Stations are situated as follows:
Buxton Natural Mineral Water
- Every mile from miles 3 through to 25. Water is supplied in 250ml race bottles with a flip-top.
- Available at miles 5, 10, 15, 19 and 23
Lucozade Sport Carbo Gel stations can be found on The Highway at miles 14 and 21.5.
Will there be road closures?
Yes. For anyone not taking part, there will be road closures and places to avoid.
Here is a road closure timetable:
Red Start: Charlton Way 6am-12pm.
Charlton Road 7am-12pm.
Little Heath 7am- 12pm.
Artillery Place 7am-12pm.
Blue Start: Shooters Hill Road 6am-12pm.
Charlton Park Lane, John Wilson Street.
Woowich Church Street, Woolwich Road, Trafalgar Road, Creek Road.
Surrey Quays Road, Salter Road, Brunel Road, Jamaica Road.
Tower Bridge, The Highway (south side), Narrow Street, Westferry Road,East Ferry Road, Marsh Wall, North Colonnade, Poplar High Street, Commercial Road, The Highway (north side).
Byward Street, Upper Thames Street,Victoria Embankment.
Where is the best place to watch?
The mass race starts at 10.00am from Blackheath and Greenwich Park.
From London Bridge station spectators can walk along Tooley Street to Tower Bridge Road and see the runners just before they cross Tower Bridge at mile 12.
Or those watching can walk over London Bridge into the City of London – the race passes underneath London Bridge.
Canary Wharf and Canada Water
If spectators keep walking they will reach Bank station, a major underground interchange.
It also connects with the DLR, so spectators can head east out towards Canary Wharf and the Isle of Dogs to see the race between miles 14 to 21.
Canada Water station on the Jubilee line is a short walk to mile nine at Surrey Quays.
If spectators get back on the Jubilee line eastbound they can get to Canary Wharf (mile 19).
Runner can be watched at Tower Hill and spectators can watch the runners from a number of locations in this area.
However, this will be very, very busy.
The best option is to walk from Tower Hill station to Tower Gateway on the DLR and head east out towards the Isle of Dogs.