Junction 2 of the A1(M).
From Kings Cross you can jump on the train which runs every 30 mins to Hatfield, the journey is about 25 minutes. Once at Hatfield station, buses and taxis are available.
Both Uno and Arriva buses stop at The Forum Hertfordshire.
Limited pay and display visitor parking is available next to The Forum Hertfordshire. This parking service is available for free past 6PM.