Spectators are free to come in and snoop around the pits, ask questions, see what they need to do to race in the Sideburn classes at Dirt Quake. It's an easy ride out into Hertfordshire for Londoners. There's a pub on the canal right outside too.
There are a few places left to ride too.
Practice runs from 10 till 3-ish. This is the postcode EN11 0EH. G