Exceeding Vauban's designs, he planned the construction of a 4 km long harbour wall between île Pelée and pointe de Querqueville.
Evidence of veneration of the saint can be found in La Hague in the Cotentin at Querqueville and also at Omonville-la-Rogue where a 13th-century mural in the church of St. John the Baptist links Helier with Thomas Becket.
Returning from this mission to Cherbourg- Querqueville, Wick ordered the aircraft refueled and re-armed.