they are SERIOUS - my brother and I missed our sailing on the Celebrity Mercury by eight minutes last month.
We never knew of this change to NINETY minutes prior as listed above- and showed up sixty minutes prior - * my brother's fault, trust me (G). But by the time our luggage was put onboard we were told we were too late. Yes our bags could make it but we could not. We had to buy tickets to Cartagena and three more nites of hotel to catch up with them. At least we still got to sail thru the Canal.
Imagine how we felt when we told our table mates about this and heard "OH but we left late out of Ft. Lauderdale." So we could have made it after all but the bottom line is - do not even think of cutting it close.
I will always be there the first hour of boarding from now on - and if my baby brother wants to go, he can meet me onboard!