Have a week? Then see these...
A Bank holiday would affect transport frequencies for sure, so factor that in.
In Southwark, defo visit Monument, Borough Market and Tate Modern. St Pauls (north of Tate Modern) is an architectural masterpiece, and many famous citizens are interred there. The Whispering gallery is fun, but I found the views from the top are NOT that great, obstructed by all the odd buildings around it. Only the river view south is decent. You get better views from Tate Modern's restaurant :) Or Oxo tower restaurant :)
Tower Bridge exhibition is cool, insightful, gets into the mechanics, etc. Views from the enclosed top walkway are brilliant :) Also, check their timetable to view it opening to let tall boats come through, you'll be in the neighbourhood, after all!
You can easily walk along the south bank, from Tower bridge upto Westminster bridge (max 25 minute walk), past the Eye. Again, the Eye is only good for views of the Houses of Parliament, not much else!
Walk around Parliament Square, the Abbey, up Whitehall (past Downing St) and upto Trafalgar Square. Walk time = 15 minutes.
From Trafalgar Square turn right towards Strand & Covent Garden for restaurants & theatres galore :) If you turn left you end up in Piccadilly & Leicester Square - shopping, clubs, restaurants & cinemas.
As another walking trip (recommended when transport is bad), from Parliament Square walk up Victoria St to Victoria & round the right toward Buckingham Palace. 20 minute walk. BTW, you reach Buckingham even from Trafalgar Sqaure (via Admiralty Arch), straight along The Mall - grand frontal approach! That's a 10 minute walk. Include a stroll through St James' Park on the left, off the Palace. On the right is Green Park, and behind that is Hyde Park & Kensington Gardens. These 2 parks are best explored from South Kensington tube after a visit to V&A, Science Museum, etc.
Top right of Hyde Park is Marble Arch, and right (east) of that is Oxford Street (shopping). North of Bond Street is Baker St (Madame Tussuads - definitely a no, no in my opinion). However, Regents Park is most beautiful, worth a visit.
A canal tour (www.jasons.co.uk, as mentioned earlier) is an excellent idea, taking you from Warwick Gardens (Little Venice), past Regents Canal, to Camden Lock (market). A great ride. We can meet up at Warwick Gardens for this, if interested!
North west of Hyde Park is Notting Hill & the famous Portobello Market. Worth a peep for sure :)
Greenwich would make a fine day out, go further to Woolwich arsenal to see the Barrier museum. National Maritime museum is brilliant, as is the Observatory, park, Queens House. Need a dry day for all this!
British Museum is near Holborn (or Tottenham Court Road tubes), Holborn being just north of Covent Garden. There's another cool museum on the left just before Holborn tube on Lincolns Inn Fields - Sir John Soanes museum. Most delightful, free entry, but get there early. The Brit Museum is massive, check the website to tackle your main areas of interest first!
Hampton Court is a good trip, as is Kew Gardens in the neighbourhood.
Windsor Castle (including return transport) is at least a half day trip, so Bath would have to be another trip, though a sound choice :) Start early in the morning for each!!
All the above is easily achievable in 6 days.
Walking around some of the sights will be a highlight of your trip, try that.
To summarise: I'd skip Tussuads, the Eye, double-decker tour. I've done many hop-on-hop-offs, & found they're great if pressed for time, to get a quick synopsis. But you have plenty of time, will be strategically located, and a lot of the sights can be integrated on the back of many walks; eg get the tube to Holborn, do Brit Muse, Soane's then walk along Kingsway to Covent Garden for theatre (10 mins), walk south to Trafalgar (8 mins), etc :) Another day walk all the way upto Big Ben, Victoria, etc. Easy-peasy :)
Of course if walking is an issue, get a travelcard for days you intend to travel a lot; or oyster card for short bursts (for instance a single bus trip, of any length costs 2 UKP on-the-spot versus 1.20 UKP via oyster).
Enjoy my city ;) River walks on a fine, sunny day.
Strolls through Hyde Park, Regents Park, and having a picnic in these oases.
Being awe-struck by the breadth of collections at the British Museum; admiring the massive collection of paintings in the National Gallery.
Cute Canal ride from Little Venice to Camden Lock.
Approving the cool location of Hampton Court Palace & it's entensive park.
Telephone and post boxes
Londoners are really proud about it. And you never make a mistake in guessing what kind of city it is when you look at the picture like this. And these red telephone and post boxes look really great at grey streets.
Thanks - when and where to use it
If you're a guy you can alternate thanks, thanks a lot, cheers and cheers mate
A rough guide is to use cheers in any small newsagent or at a pub. In a bar if a guy serves you can use cheers mate, otherwise a cheers is appropriate.
In any 4* or high end bar or restaurant using 'Cheers' is not recommended. It kind of places you as lower in the social order. It's better to stick to 'thanks!'
What's in a Name!
Her Majesty's Theatre changes her name to the male equivalent depending who is currently on the British Throne. I just loved this building illuminated at night with its many windows & spectacular dome lighting the night sky. Her Majesty's is the 4th. Theatre to stand on this site at Haymarket, designed by C.J. Philips & opened on 28th. April 1897