Harpenden is about 10km north of
the M25 London Orbital Motorway and close to Junctions 9/10 off the M1.
From J9 follow the signage to Redbourne, then Harpenden. From J10, take the
A1081 to Harpenden. Car parking is available at the Rothamsted Conference Centre.
Harpenden has frequent trains from
central London (King's Cross Thameslink). The journey time is about 20
minutes and the station is a ten minute walk away from Rothamsted.
The closest international airports
are Luton, Heathrow & Stansted. From Luton, take the Thameslink line
direct to Harpenden. From Heathrow take a Piccadilly line underground train
to King’s Cross Thameslink. From Stansted, travel by train into London and
then onto King’s Cross Thameslink.