Just go down the A23 until you get to the big roundabout.....you’ll see the signs. Mill Road is the third exit round to the right, past the filling station and under the bridge
Parking in Lewes and getting the (free and regular) train to the stadium (7 mins) is another option. Much easier and cheaper to drive to than Brighton.
If using P&R and Mill Road is full, head for Brighton Racecourse.
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