Holland America's Eurodam and Nieuw Amsterdam have multiple options if you want to guarantee some personal space on board. Kids in tow? Reserve one of the curtained cabanas with ocean views at the family-friendly Lido Pool. The pool's retractable roof means you can hang out no matter what the weather is like outside. If you're seeking serious serenity, opt for an adults-only cabana in the Retreat on Eurodam or Cabana Club on Nieuw Amsterdam.
What they cost: Cabanas by the Lido Pool are $30 per day while in port or $50 during a sea day. You can also book a cabana for the entire length of your cruise, ranging from $199 for a seven-day cruise up to $499 for a 20-day cruise. Cabanas in the Retreat and Cabana Club are $45 per day while in port or $75 per day while at sea. Rentals for the length of your cruise range from $299 for a seven-day cruise to $599 for a 20-day cruise. Cabanas can only be pre-booked if you are reserving for your entire cruise. Daily rentals are available once you are on board.