From what I remember it's the first 3 days of a long cruise, but if your on a 3 or 4 day they might require on day 1. Just ask a bartender they'll know for sure on that cruise.
11 cruises in 2012, 90 nights at sea visiting 15 countries
8 cruises in 2013, 56 nights at sea visiting 7 countries
Next cruise: None scheduled
PM me if you need a cruisemate for any Europe, transatlantic, or Panama Canal cruises
Date, ship, cost pp