In general, London is a "something for everyone" kind of town: two thousand years of recorded history, evolving culture, art, and architecture glammed up by one of the hottest social scenes in the world.
But, London in the off-season is a real treat for the solo female traveler, offering a gal the opportunity to explore a relatively safe, large city that is filled with unparalleled museums, theaters and galleries, great food, incredible shopping, and potential fling-mates with sexy accents wearing cleverly tied scarves.
Visiting in winter is actually a good bet (if you don't mind the cold, that is). Coming from the northeastern U.S., I found the weather to actually be milder than it was at home. Flights and hotels are markedly cheaper between December and February than they are during the warmer months, so you'll have extra cash to burn when you hit Knightsbridge shopping meccas Harrod's and Harvey Nichols. As an added bonus, traveling during the off-season means you encounter fewer vacationing parents attempting to force culture on their adorable spawn. Enjoy Dali's "Lobster Telephone," housed amongst other great works of modern art at the (free!) Tate Modern on the south bank, without having to fight your way through seven-year-olds having apoplectic giggle fits.
Nearly all the major museums in London are now free, including the V&A, British Museum, Natural History Museum, and Imperial War Museum (though "free" sometimes entails the pressure of a suggested donation).
London has perhaps the world's most famous, thriving theater scene. In London's Bankside neighborhood, you can visit Shakespeare's Globe, while in the West End, you'll find as many Hollywood stars "treading the boards" as there are on Broadway.
Foodies would do well to visit Borough Market, off Borough High Street, open Thursday-Saturday. It claims the title of longest running food market in London, and has a remarkable selection of gourmet food vendors pushing all manner of decadence (the brownies from Flour Power Bakery are downright hedonistic, worth every fat gram). Head from there to Vinopolis, an oenophile's wonderland just around the corner that offers wine tours and tastings (and if wine isn't your thing, there's a gin tour, too).
There are some benefits to seeing London in the summer, though. If you visit from July 2007, you can swing by the Tower of London and wave a proud hello to Moira Cameron, London's first female Beefeater.
Quick Tips:
If you're visiting London for the first time and want to hit all the major historical sights, a 48-hour ticket for a Big Bus Tour is a good investment. Tickets cost a mere 20 GBP for two days of sight-seeing, and offer discounted and/or express admission to various tourist attractions.
You can save a heap of cash by staying in a youth hostel, of which London has plenty. Typically, a bed in these dorm-style rooms will go for anywhere from 10-30GBP per person, per night, and might even include breakfast. You may find it's worth to sacrifice a bit of privacy for the savings. You can book most hostels online (try hostelbookers.com - no booking fee) or check with the accommodation desk at the airport. Some hostels are cleaner and more reputable than others, though. While most hostels are co-ed, often female-only rooms or even female-only floors are available for a few pounds more per night. I stayed on the female floor of the St. Christopher's Orient Espresso hostel and, for 20GBP per night, I got a bed, a towel, showers with shampoo and conditioner in the stalls, and hairdryers in the bathroom. Bargain!
TimeOut is the event bible for most major cities, and London was its birthplace. Be sure to pick up the city guide, or the weekly listings magazine, which will tell you what's going on all over town that week. With a TimeOut and mini London A to Z street index, you really have no excuse for boredom.
There are plenty of cheap or free events in the city every night of the week. My favorite discovery was the Dana Centre in South Kensington, which features engaging (often free) talks and presentations on science and culture every Tuesday, Wednesday, and Thursday night. It's also got a cafe bar and Internet access.
London is a great base of operations for traveling around Europe, as well. Budget airlines like EasyJet and RyanAir fly to several major cities for cheap.
Staying in touch with the folks back home is easy. If you've got a GSM network mobile phone, get it unlocked by your home service provider and then just buy a prepaid sim card when you get in. Carphone Warehouse is a mobile chain found all over the UK that sells sim cards and wireless service.Best Way To Get Around:
Buy an Oyster card as soon as you land. They cost 3GBP to buy, and you add funds as needed. Oyster card rates are much cheaper than the rates for any other type of tube ticket, and they're also good on buses. When you run out of money on the card, you can just top it up using ticket machines in tube stations.
The underground and bus network in London is extensive, so there are few areas of London proper you can't reach with your Oyster card.
Taxis will deliver you to your location in comfort, but can make a dent in the wallet. The meter "starts" at 2.20GBP, so unless you got a favorable exchange rate or your blowout is in terrible jeopardy owing to one of London's notorious downpours, stick to public transport to avoid blowing your budget.
The only time I bothered with a cab was the night I stayed out past Underground closing time. While the network of night buses is extensive, finding the right one can be tricky. Stick to the iconic black cabs; those drivers are immensely knowledgeable and generally reputable. Minicab drivers do not have to be licensed or registered with the city, and may not be as familiar with the city. Traveling with an unregulated driver could also pose a safety hazard to the solo female traveler, so if you do use a minicab, use a well known service. It sort of goes without saying, but avoid taking gypsy cabs pretty much anytime, especially at night.
Otherwise, the best way to get around London is on your own two feet (or however many limbs or wheels you may enlist in daily locomotive tasks). London is full of shops, markets, restaurants, and sights that you'll easily miss if you spend all your time on the tube, with your nose buried in a guide book.