Cabair Helicopters, Borehamwood

See London from above, and away from its congested streets and crowded sights. Cabair Helicopters offer 30-minute helicopter tours of London for £149 (including tax), including a full commentary by the captain. Tours depart from and return to, the Elstree Aerodrome in Hertfordshire, which allows you to take in all the sights along the Thames, from Kew Gardens to the Thames Flood Barrier. This means you'll get to see aerial views of the London Eye, Millennium Dome and Houses of Parliament, amongst others. Tours only run on Sundays, but exclusive bookings can be taken for weekday flights. Charter flights are also available. Bookings can be taken up to six months in advance, making these trips great options for birthday or Christmas gifts.