A Vulcanian eruption is a short, violent, relatively small explosion of viscous magma (usually andesite, dacite, or rhyolite). This type of eruption results from the fragmentation and explosion of a plug of lava in a volcanic conduit, or from the rupture of a lava dome (viscous lava that piles up over a vent).
Sail & Sign Card / Account. You will receive your Sail & Sign Card when you first check-in at your embarkation port. Sail & Sign is Carnival's onboard cashless credit program, which allows you to charge all your services, gratuities and purchases during your cruise to your cabin. Your Sail & Sign Card is also your cabin key and boarding card.
P&O Cruises is a British/American cruise line based at Carnival House in Southampton, England, operated by Carnival UK and owned by Carnival Corporation & plc.&O first introduced passenger services in 1844, advertising sea tours to destinations such as Gibraltar, Malta and Athens, sailing from Southampton. The forerunner of modern cruise holidays, these voyages were the first of their kind, and have led to P&O Cruises being recognised as the world's oldest cruise line.