This Sunday April 23, some 50,000 ambitious runners will make their way along 26.2 miles of prime London turf, contributing to an almighty charity loot of more than £50 million.
If you're not running, instead turn out and offer your full support. We've mapped the very best pubs, bars and restaurants close by the course to cheer from.
Typically, the starting point in Greenwich, and the finish line, at St James's Park, tend to have the best atmosphere, though in truth you'll find most of the course has its share of spectators. If you're hoping to see runners twice, head to the Wapping and Shadwell area, or West India Quay. Either way, have a drink, get your cheering voice out and have some fun. Flick through the gallery above to see all the best pubs and restaurants along the route.
Have we missed anywhere? Let us know in the comments below.
Start – Greenwich: The Kings Arms
1 Frances St, SE18 5EF
This plucky pub survived a bombing in 1974, so a marathon isn't going to put the owners off opening. Situated at around the second mile, the runners should jog right by (although some of the less dedicated may pop in themselves).
Start – Greenwich: Trafalgar Tavern
Park Row, Greenwich, SE10 9NW, trafalgartavern.co.uk
No humble riverside pub here: this grand, regency-style spot is perfect for a bite to eat after the race has kicked off. It offers beautiful views of the river, and is more than comfortable enough to stay in for a few drinks.
Start – Greenwich: The Old Brewery
1A Pepys Building Old Royal Naval College, SE10 9LW, oldbrewerygreenwich.com
Formerly a Meantime pub, The Old Brewery has changed hands, but the building has kept its charms. Sat moments from the Cutty Sark in the Old Royal Naval College, they've a terrific terrace and a decent dining room serving locally-sourced bites. Either watch the race kick off and stroll over this way, or stay here and wait for the runners to pass by at around the six mile mark.
Mile 6 – Greenwich: The Gipsy Moth
60 Greenwich Church Street, SE10 9BL, thegipsymothgreenwich.co.uk
This tiny Grade I listed pub sits opposite the Cutty Sark (mile six or so), so once the streams of runners have sweated by, there'll still be a decent view to enjoy. They're proud of their Sunday roast, too, so if watching other people has worn you out, you've a chance to restore your energy.
Mile 10/11: The Mayflower
117 Rotherhithe St, SE16 4NF, mayflowerpub.co.uk
One of two pubs in this list alone which claims to be the oldest riverside pub in London, the quaint Mayflower makes an ideal base to wander back and forth from to see who's training is paying off as runners make their way through Rotherhithe. If you can, get a spot riverside, in their lovely little garden.
Mile 10/11: The Angel
101 Bermondsey Wall E, SE16 4NB
The large gardens and views over the Thames means the Angel is a beautiful spot to be if the weather is good. It's a fairly traditional, neighbourhood pub, which fortunately rarely gets too crowded. If you're simply looking for a decent pint, there are few better choices on the route.
Mile 12 – Tower Bridge: Pont de la Tour
36D Shad Thames, SE1 2YE, lepontdelatour.co.uk
Request a table outdoors at this excellent French spot and you'll see the runners make their way across Tower Bridge. It's pricey here, but the food and staff are both marvellous. Certainly, the view isn't perfect for the marathon, but consider the runners a nice addition to an indulgent Sunday lunch. They've some excellent wines, too.
Mile 12 – Tower Bridge: The Draft House
206-208 Tower Bridge Rd, SE1 2UP, drafthouse.co.uk
For a more relaxed Tower Bridge experience, head over to the Draft House. Just don't expect to sit down: Tower Bridge is a highlight of the marathon, so the area takes on something of a street party feel. You'll have fun here.
Mile 13 (and 22) – Wapping: The Prospect of Whitby
57 Wapping Wall, E1W 3SH, taylor-walker.co.uk
Another institution claiming to be London's oldest riverside pub, the Prospect of Whitby certainly feels like it might not have changed much in recent history. That's part of the appeal, but head to the raised seating at the back for views over the Thames.
Mile 13 (and 22) – Wapping: Turner's Old Star
14 Watts St, E1W 2QG, turnersoldstar.co.uk
There's no flash at this pub, and it's a little walk from the race itself (like many around this point), but Turner's Old Star fills up every year with race supporters. It's simply a good old-fashioned boozer. As one might have guessed, it's named after the artist, who once owned the place. More recently, a couple of years ago, it was featured in Kray biopic, Legend.
Mile 13 (and 22) – Wapping: The Narrow
44 Narrow Street, E14 8DJ, gordonramsayrestaurants.com
Gordon Ramsay's gastropub sits directly on the main marathon route, so expect crowds outside on the street side. Pop out to join them before heading to the back, where they've soothing views over the Thames.
Miles 15 (and 18/19) – Boisdale of Canary Wharf
Cabot Place, E14 4QT, boisdale.co.uk
If you fancy making more of a day of it than just whiling away the hours in a pub, head to the upmarket Boisdale. Highlights include the whisky and oyster bar and a cigar terrace, but stick around until the evening, when there'll be live music to enjoy.
Mile 17 – Crossharbour and South Quay: The Floating Lotus
9 Oakland Quay, Inner Millwall Dock, E14 9EA, lotusfloating.co.uk
A step back from the Canary Wharf hub at mile 17 is South Quay. The pubs and restaurants here usually have a smaller crowds than those near Canary Wharf and West India Quay, so you'll have a little more breathing room. Grab a table by the window at The Floating Lotus, which is located on a huge permanent mooring between Crossharbour and South Quay stations, directly on the Marathon route. From noon until 4.30pm it serves a good value dim sum banquet — the plump, delicately flavoured har gau is delicious.
Mile 23 – Tower Hill: Hung, Drawn and Quartered
26-27 Great Tower St, EC3R 5AQ, hung-drawn-and-quartered.co.uk
Fuller's have kitted out this pub near the finish nicely and it's a good spot to watch the worn-out joggers dig deep into their very final energy reserves. There's plenty of space here but it's still worth getting down a little early to grab a seat. By the way, Fuller's have made an effort to up their food game lately, so get a bite to eat, too.
Mile 24: The Savoy
Strand, WC2R 0EU, fairmont.com
After spending a little time on the Embankment and watching the runners go by, change the pace dramatically and head to the Savoy to spend an afternoon bathed in utter luxury. Their afternoon tea is possibly the finest in the capital, while the American Bar and Beaufort Bar both serve sterling drinks.
Mile 25 – Embankment: Gordon's Wine Bar
47 Villiers Street, WC2N 6NE, gordonswinebar.com
Gordon's Wine Bar lies slap bang on the route as the runners pass by Embankment and on towards Westminster. Take an outside table in the alleyway next to Victoria Embankment Gardens to catch some sun (and a glimpse of the sweaty masses regretting their life decisions), or head inside to the wine caves, which are always bustling, and always romantic. Gordon's is almost constantly, and the marathon won't help, so get down early, and prepare to drink a lot of wine. It's a hard life, right?
Mile 25/The End: The Westminster Arms
10 Storey's Gate, SW1P 3AT, shepherdneame.co.uk
This small pub comes right before the finish line. At the top of the road, the runners will be either speeding to the finish line or swearing they'll never be this stupid ever again. Once you've seen enough, wander back here. As the name suggests, it's a popular spot with politicians – in fact, it's a favourite of Nigel Farage, but you can't have it all. Bill Clinton and Angelina Jolie are among the famous names to have popped in for a pint.
Finish line – St James’s Park: Inn the Park
St James's Park, SW1A 2BJ, peytonandbyrne.co.uk
With the runners coming past the Palace and down The Mall to finish the race, nip away from the crowds and search out Inn The Park, nestled among the trees and ponds of St James Park. They've a decent selection of wine – especially among the rose – so grab a glass and unwind on their terrace. If you're treating a tired runner, take them out to be spoiled at the likes of nearby Hix, Novikov or Duke's Hotel.