At least that is what the press reported. I suspect that the lingering presence of ice in the same area may well have been a factor too.
The ship left pier 22 and sailed north about George's Island this morning.
Silver Whisper was built in 2001 by the Mariotti Shipyard in Genoa, builder of yachts and yacht-like cruise ships. This one at 28,258 grt and only 382 passengers (but a crew of 295) has the highest space per passenger ratio of any cruise ship (grt divided by number of passengers = 74). It operates for Silversea Cruises of Fort Lauderdale, FL and is registered in the Bahamas.