On this tour Paul Talling, takes you on a walking tour around Hampstead showing you the sources of three of London's best known lost rivers - the Fleet, the Tyburn & the Westbourne and reading from his book London's Lost Rivers. We visit the sites of wells, a lost pond famously painted by John Constable, as well as the existing Hampstead Ponds & streams that form the sources of these rivers that began their descent in Hampstead towards the River Thames and shaping London's history.

Other miscellaneous sites along the way include the former London home of the black singer, actor and pioneering civil rights activist, Paul Robeson and a former pub that was frequented by Charles Dickens, Karl Marx & Bram Stoker.

Whilst we will not be heading down into any sewers or enduring mountainous conditions, you are advised to wear sensible footwear as the off-road terrain on the Heath is coarse, hilly and can be slippery when wet.

This tour starts outside Hampstead Tube station (Northern Line) and finishes near Hampstead Heath Station (Overground). The tour lasts approx 3 to 3 1/2 hours.

Dogs are welcome on all tours

By purchasing a ticket for a walk, you agree to the following terms and conditions:

* Although public liability insurance is held, the organiser shall not be held responsible for accidents, injury, loss or damage to persons or property because of participation in Paul Talling's walks. Ticket holders are responsible for their own safety while taking part in a walk. The guide is responsible for showing ticket holders sites of interest, but not to steward ticket holders across roads etc.

* The tour goes ahead regardless of the weather. No refunds due to inclement weather are given.

* The walk will depart promptly at the advertised time & will not wait for late-comers. If a ticket holder misses the walk, no refund will be given. You are strongly urged to check TFL for weekend engineering works that may affect your journey.

* Once a ticket has been purchased, the agency is unable to offer a refund or swap dates.