Meet these retired sisters in their 60s who live on cruises full-time. They've already spent over 1,500 days at sea.

Tech Insider : Travel
Photo collage featuring a cruise ship at sea, a home with a 'sold' sign, a pile of money, and a rear view of two sisters embracing

Getty Images; Alyssa Powell/BI

9 new around-the-world cruises have joined Royal Caribbean's Ultimate World Cruise at sea. See what they're like — from a sold-out 6-month luxury cruise to a cheaper $21,100 option.

Tech Insider : Travel, Travel
Oceania Cruises insignia
Nine world cruises from eight different operators have already set sail in the New Year.

Oceania Cruises

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