Adventure Canada's Sea Adventurer Expedition Ship

(2:16 p.m. EDT) – Adventure Canada is canceling two Arctic cruises after the ship it has been chartering, Sea Adventurer, was deemed inoperable. Mechanical problems first sidelined the ship at the end of July when a Greenland and Canadian Arctic sailing had to be cut short.

The decision to pull the ship was made by the ship's management company, FleetPro, which had estimated repairs would take two weeks, necessitating one cruise cancellation only. But more time is needed before the ship can be safely operated.

According to CBC News, the unspecified mechanical problem is located within the ship's secondary engine.

"We understand that reducing our Arctic sailings from four to two programs is deeply disheartening news," the company said in a prepared statement. "We have taken immediate action by offering a number of options for travelers affected by the cancellations."

Among the options are: placement on select 2014 sailings with partial refunds and onboard credits (varies by original sailing and replacement sailing), changing to select 2015 sailings with partial refunds and onboard credits (varies by original sailing and new booking), or a full refund.

Adventure Canada expects Sea Adventurer to be fully operational for its scheduled Greenland and Wild Labrador program, departing September 11.

Adventure Canada has chartered Sea Adventurer from FleetPro since 2009. The ship underwent its most recent maintenance in May 2014.

--By Dori Saltzman, News Editor