Original London Walks has been around for about 45 years and has become a favorite with both visitors and residents - it actually
is the original walking tour company in London. The guides are probably the most knowledgeable and entertaining in the industry, and you’ll learn many obscure facts and have the chance to see many areas within the city that the average visitor would never know about. Each walk is about 2 hours long, and you can find one at almost any time of day.
The topics run the gamut -- recent walks I’ve been on include Christopher Wren’s London, The Victoria & Albert Museum Tour, Old Westminster – 1,000 Years of History, and Strictly Confidential – The Distinctly Different Royal Route. They were all well worth the time (I’ve actually done the V&A walk twice – it was different both times.)
This group also hosts "Explorer Days," which are full day excursions, mostly to areas outside London. These are good deals; you get the same great guides, free time to explore on your own, and the train tickets are discounted from what you'd pay if you went on your own. Explorer Days go to places like Bath, Stonehenge, Oxford, the Cotswolds, Brighton – sometimes they're combined – a half day in Oxford, a half day in the Cotswolds, for example.
I recently went on the Salisbury and Stonehenge Explorer Day. We took a train ride out to Salisbury, had a guided tour of the cathedral, an hour or so for lunch, then we took a bus to Stonehenge where we had a private tour of the stones – you really can’t beat the knowledge these guides possess – and then we returned to Salisbury and had about an hour on our own to shop or whatever before returning to the train station. It was a full day, but well worth it!
London Walks also does evening walks, mainly consisting of Pub Walks, and of course, the famous Jack the Ripper walk. The cost is reasonable – £6 for a walk, £11 for Explorer Days (plus the tariff for train tickets). They also have a Walkabout Card, which you pay one pound for at your first walk, then all additional walks are one pound less – £5 or £10. It can be a good deal, but even the guides will tell you that it’s only worth it if you plan to go on more than, say, three walks. Visit the London Walks website for lots more information and detailed descriptions of the walks.