Dec 23, 2013 12:43 GMT Fred. Olsen Cruise Lines Fred. Olsen Cruise Lines is offering guests something completely new and different in 2014…its first-ever ‘Mystery Cruise'! Departing from Tilbury on 15th November 2014 for 14 nights – on Fred. Olsen's inaugural turnaround call at this Essex port – the mystery is where in the world Black Watch will take you?