RCL has Solariums that are ADULT ONLY with Dip pools, and Brilliance of the Sea has a beautiful (well 6-7 years ago) indoor pool area, Anthem solarium is very modern and nice; quite and relaxing.
I wish they sent more/nicer ships to Europe with 10-14 day itineraries.
That's what we call RCL - RELAXATION CRUISE LINE; not dull, it is lovely. NCL is more lively, less children.