Oyster CardsOyster PAYG is now valid on Southeastern High Speed services between London St. Pancras and Stratford International. Oyster is also valid on Docklands Light Railway services.
Put simply, zone 2 training is aerobic exercise; the part where your heart rate is up, you're sweating but you're not tiring yourself out completely. Almost any moderate intensity cardio-oriented exercise, whether it's: Brisk walking. Jogging.
Hampstead is a London Underground station in Hampstead, North London, England. It is on the Edgware branch of the Northern line, between Golders Green and Belsize Park stations. The branch's northernmost subterranean station, it is on the boundary between Travelcard Zone 2 and Zone 3.
If you have an Oyster with a valid travelcard for zones 1-3, and you travel outside those zones, you will pay an extension fare for only the zones that the travelcard doesn't cover. For zone 4, this should be the price for a trip within zone 4 only.