Holloway road tube, come up, turn left, keep walking, cross over look for big pub called Coronet. it's got huge neon lights and you can't miss it :)
Tube:
Take the Metropolitan, Hammersmith & City or Circle Line train to Farringdon. Once at Farringdon, leave the station (there's only one exit), and immediately turn right. Walk straight on until you get to a crossroads (about a minute). The Sir John Oldcastle is immediately opposite you. So cross the road and go in! (Hint: The entrance is round the side - if you continue straight on, as if you'd crossed the road to go up the opposite street, you'll see it almost immediately on your right).
Rail:
Thameslink services from Bedford, Luton, North London, Kings Cross, Blackfriars, East Croydon, Gatwick Airport and stations to Brighton all call at Farringdon.
See http://www.railtrack.co.uk/travel/ for details.
Bus:
Bus service 63 (serving Crystal Palace, Peckham, Elephant & Castle, Blackfriars, Clerkenwell and Kings Cross station) is the only one I know of. If you catch this, ask the conductor to drop you off near to Farringdon station, then give you directions to the station. Once you're at the station, a bit of doubling back is involved, but it guarantees you don't get lost!!
Go to Tottenham Court Road tube station, and leave by the exit that says 'Charing X road' - you'll have to go under centre point (it smells of wee).
Walk down Charing X road until you see the Moon Under Water on the right.
It's past a load of book shops.
Alternative:
Come out of leicester square station (use the exit that offers such delights as the warner west end cinema). Assuming that you have come out of the entrance which puts the hippodrome immediately on your right, turn LEFT and walk down the road, walking with the flow of traffic.
After a short while, you will come to "Cambridge Circus". this is identifiable by the theatre currently housing "Les Miserables". continue straight on, avoiding the draw of the dodgy gentlemen who will try and sell you "skunk weed", use of their "minicabs" and "nice nubile ladies". after a very short while, you will come upon the pub on your left.
Go to Old Street (just along the Northern line from Angel). Come out of Exit 6. Go straightr ahead. Pub is on left after Shell garage, opposite Argos or Kwik Save or something.
From Old Street tube, take Exit 3, and head eastwards along Old Street. Observe a large fork in the road (no, not cutlery). On your right, a chippy. Over on the far side, The Crosby Head. Bang in the middle of the junction, The Foundry.
Map: http://www.streetmap.co.uk/streetmap.dll?G2M?X=533057&Y=182557&A=Y&Z=1
Orange Yard (off Manette Street).
Come out of Totenham Court Road station and walk along Charing Cross Road. Take the 3rd turning on the right, then look for a turning on the right which is Orange Yard. The building that looks like a hut with a bouncer or a small crowd is the entrance to The Borderline.
This is another Wetherspoons pub, and it doesn't charge Central London prices, so that's nice. Can get slightly busy on Friday evenings, but it's never usually a case of "standing room only" (unlike MUW CXR).
Getting to The Beehive is easy, as it's close to Brixton tube & rail stations, as well as a number of bus routes.
By tube:
1) Go to Brixton Tube. It's at the southern-most end of the Victoria line, you can't miss it. It's in Zone 2.
2) Upon leaving the tube station (there's only one exit), do an immediate right turn. Stay on the side of the road that you're on, walk straight ahead (under the railway viaduct and across Brixton Station Road. "The Beehive" will be on your right. If you get to Canterbury Crescent then you've gone too far.
By rail:
1) Brixton rail station is served by trains from Victoria to Herne Hill, Bromley South & Orpington (via West Dulwich). There are trains every half an hour or so, phone National Rail Enquiries on 0345 48 49 50 for details. Again, like the underground station, it's in Zone 2.
2) Upon leaving the station, head towards the main road (it should be fairly easy to spot). Once you've done this, turn right, and keep walking straight ahead on the same side of the road until the pub is on your right. If you get to Canterbury Crescent then you've gone too far.
This pub is on Mile End Road, between Stepney Green (District and Hammersmith & City lines) and Mile End (District, Hammersmith & City and Central lines) tube stations.
From Stepney Green station: Out of the station, and turn left, staying on the main road (you'll cross over a road called Globe Road, and go past a pub called The Globe). The pub is a few minutes walk on your left. It's not quite your average Wetherspoons pub, so keep your eyes peeled!! If you get to Mile End tube, you've gone too far!
From Mile End station: Out of the station and cross over the road, turning left to follow the main road on the opposite side once you've done so (you should cross over a road called Grove Road at the cross-roads). After about 15 minutes walk, the pub will be on your right. If you get to Stepney Green tube, you've gone too far!
From Holborn tube: at the top of the escalators, turn right to leave the station. Turn right again, and Penderels Oak is on the right after about 300 yards.
From Chancery Lane tube: after the ticket barriers, turn right and right again, walk up the stairs and continue straight on. The pub is on the left after about 250 yards.
Come out of the main exit of Holborn station (ahead of you at the top of the escalators). Turn left. It's 100 yards on the left.
Map: http://www.streetmap.co.uk/streetmap.dll?G2M?X=530575&Y=181438&A=Y&Z=1
This is on the south bank of the Thames between London Bridge and Southwark Bridge. From the east (London Bridge station) or north (Monument station), get yourself to the southern end of London Bridge (the bridge itself), and look for the steps down on the western side. The pub is signposted (along with the Thames Path west) on these steps and subsequently.
From the west (Southwark or Waterloo stations), go along the Thames path eastwards past Tate Modern, The Globe, Southwark Bridge, and the Anchor PH where the path diverts away from the river along Clink Street, past the Clink museum and the remains of a cathedral, and you're there.
There is usually a big ship with lots of masts parked in a dock alongside the pub, so it's not hard to spot.
The map will make things clearer:
Map: http://www.streetmap.co.uk/streetmap.dll?G2M?X=532615&Y=180411&A=Y&Z=1
At Camden Town tube station, you will probably be herded out of the right-hand exit. With your back to this exit, hold out your left hand in front of you with the palm facing downwards, fingers together, thumb extended so it makes a kind of L-shape. Your thumb will be pointing in the direction of traffic along the High Street, and your fingers will be pointing the way you have to go -- cross the road and head up Parkway, past the cinema and the Rat & Parrot. The Hogshead is on the left next to an organic health food shop (well something has to be).
Map: http://www.streetmap.co.uk/streetmap.dll?G2M?X=528791&Y=183733&A=Y&Z=1
Leave Blackfriars station (tube, rail -- please note, however, that rail services to Blackfriars station are currently *only* coming from the south -- there is no cross-London Thameslink service).
Turn left, walk across Blackfriars Bridge, and then Doggett's Coat & Badge is immediately on your right after you have crossed the bridge.
If you're walking on the left-hand side of the bridge (i.e. with Tower Bridge off to your left in the distance), there's a foot-tunnel underneath the bridge to cross the road once you're on the south side of the river.
Doggett's Coat & Badge is also directly opposite a bus stop for routes 45, 63 and 100 -- if catching any of these buses (the 45 and 63 go from King's Cross, the 100 starts in Wapping I believe), ask the driver to shout you at the south side of the Thames, or just keep an eye out for crossing the river!
Alternative directions:
From Waterloo: Leave Waterloo station via the exit near the Jubilee line (head for the Jubilee line, then head for an exit from the station).
You should now be on Waterloo Road.
Turn left on leaving the station, and walk a few moments until you are at a large roundabout ("The Bull-ring").
This roundabout has a road off to the right of it called Stamford Street.
Walk down Stamford Street until you reach Blackfriars Road.
Turn left.
After a few moments walk, Doggett's Coat And Badge should be on your left.
From Southwark: Leave Southwark tube station (using the Blackfriars Road exit and *NOT* the Waterloo East exit -- if you do go out of the Waterloo East exit, you'll be on Waterloo Road as above but will need to turn right to get to the bullring, not left).
Upon leaving the station, turn left, and then head up the road you are on -- Blackfriars Road.
Doggett's Coat & Badge will be on your left after 10 to 15 minutes walk (it's on the riverside).