A croquet lawn existed on the northern terrace, between the castle and the Lugton Water, also the old site of the marquee for the tournament banquet. The 13th Earl developed a variation on croquet named 'Captain Moreton's Eglinton Castle Croquet', which had small bells on the hoops 'to ring the changes' and two tunnels for the ball to pass through. Several incomplete sets of this form of croquet are known to exist. It is not known why the earl named it thus.