Did you book cruise air or on your own?
I think it is a bit tight. I would check if NCL will wait for you it is about 2-3 hrs to
Dover depending on traffic.
Gatwick may not be as bad as LHR but...
Alexandr Pushkin, Carnival-Holiday, HAL-(old)Westerdam, Orient lines-Marco Polo, Royal Olympic-Olympic, NCL-Dream, Dawn-Princess, ACCL-Grande Caribe, Oceania-Insignia (3), Regatta(4) Marina (1) St Lawrence Cruise Lines-Canadian Empress
Scenic River cruise June 11,2012