You’ll need to go round the back of Marazion to find the Beacon. Beacon Road is directly opposite the Godolphin Arms, walk up the road and instead of following it to the left, turn right into Back Lane.
Follow Back Lane for a couple of hundred metres (enjoying the views of the town and bay to your right) and you will see a sign on the left for the Beacon. Go up the narrow path and just before you reach the fire basket of the beacon itself (placed to commemorate the defeat of the Spanish Armada in 1588), you will see some benches on the left where you can stop and enjoy the view.
The beacon is still lit today on special occasions, most recently the Queen’s 90th birthday in April 2016.