In 1975, Judd visited the Bishop Rock lighthouse, but (according to her BBC profile page) "looked like she was about to plunge into the murky depths." Disaster nearly struck as she travelled by rope to the lighthouse from a boat. Her harness snapped, leaving Judd with no support should she lose her grip on the rope." Show editors Biddy Baxter and Richard Marson both defended Judd's reaction to this incident in subsequent books, revealing that she could not swim and thus showed enormous bravery by undertaking the challenge at all. During her time on "Blue Peter" Judd also presented the spin-off series "Blue Peter Special Assignment".