It is very unlikely. The main reason for a tour being cancelled would be a major transportation issue, although this is extremely rare. The Guides live in London, so can make use of the tube and bus network and will follow up to date transport information to try to prevent any problems. Very rarely extreme weather conditions could prevent a tour going ahead, but even in heavy rain or snow tours generally continue (bring your umbrellas and ponchos if bad weather is predicted!)
There are a few rare occasions through the year where the Guard Change fails to take place for reasons out of the hands of the Tour Guide. Sometimes this will not become apparent until after the walk starts (usually due to weather conditions). In such a case the Tour Guide will continue with a modified tour. If you are not 100% satisfied with this, we will endeavour to provide you with an alternative date, tour or discount.
If a total of fewer than four people are booked onto the tour then we reserve the right to cancel. In such cases you will be sent an email/SMS and given prior notice, with the offer of a refund or alternative date.
In the event of cancellation, we will endeavour to let you know with as much notice as possible by either email or SMS and provide a full and prompt refund or offer an alternative date/tour if preferable.