Follow the B1083 into Bawdsey, turn into 'East Lane' and follow this all the way down. You can either park in the car park at the end of the road, or if space is available, park in the layby immediatly after the road on the right, but please do not block the gate.

 The road on the right before the car park is the one you need to take (as the old coastal footpath is now closed). Follow this road all the way and you will reach the tower. You can gain access by either climbing down near the granite blocks or by walking along the footpath until you reach the end of the cliff, where the footpath goes down to the shore. London clay is nearly always exposed on the foreshore.