For the first time in 99 years, a total eclipse of the sun will pass over the continental United States on August 21, and Princess Cruises guests sailing on six cruise ships in Alaska will be invited to special viewing parties as part of the cruise line’s exclusive Stargazing with Discovery at Sea program.

From the top decks in Alaska, nearly 18,000 guests aboard Coral Princess, Emerald Princess, Grand Princess, Island Princess, Ruby Princess and Star Princess will be invited to enjoy an approximately 54 percent view of the eclipse. Guests will be provided specially-branded Science Channel™/Discovery at Sea eclipse glasses for ultimate viewing, paired with educational background on what causes an eclipse from the exclusive Stargazing with Discovery at Sea staff as they provide a “tour” of three intervals the morning of August 21.

Denise Saviss, Princess Cruises vice president, entertainment experiences, said:

“Through our exclusive partnership with Discovery Communications, we’re able to offer expert tips and background from Science Channel experts that provide intriguing commentary around this rare phenomenon and for the ultimate viewing party onboard.”

The Great American Eclipse onboard event is part of the Stargazing with Discovery at Sea program which is led by Discovery at Sea Science Channel Ambassador and astrophysicist Dr. Hakeem Oluseyiwho has created entertaining family stargazing programming enabling the crew to lead cosmic voyages from the ship’s top deck.

Branded posters, Camp Discovery Youth & Teen Center solar projector building projects and even specialty Eclipse Cookies also will be offered to celebrate this rare occasion.