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.
Carnival's Sail & Sign Question - Cruises Forum. Carnival's Sail & Sign Question. Has anyone recently traveled on a Carnival Cruise and can tell me the amount that is required at check-in for the Sail & Sign? I called Carnival and 2 different people gave me 2 different amounts. I am going in a week and would like to have an idea.