Lindblad Expeditions-National Geographic has announced the addition of two new departures to its Antarctica 2016 season on November 6 and November 16, according to a prepared statement.

The company cited the increased demand, and with two ships in the region, National Geographic Explorer and National Geographic Orion, and said the season is almost sold out.

Both departures will be set aboard the 102-guest National Geographic Orion, and will follow the 14-day Journey to Antarctica: The White Continent expedition.