See pictures and descriptions of available cabins for Adventure of the Seas, which is ranked 25 among Royal Caribbean cruise ships by U.S. News.

Lindblad, however, is only one of a growing number of adventure-centric cruise lines. The steady influx is a testament to the burgeoning popularity in expedition sailing.

Royal Caribbean’s Adventure of the Seas is to undergo a $61 million facelift, including the installation of dual ‘racer’ waterslides, a surf simulator, and a children’s water park.