Hi, PixiTrix! Here’s a little more info, in case you’re still interested.
We traveling sisters have been to the spa for mani/pedi services during each of our four cruises this year, on four different Princess ships.
All use CND shellac, which is a mix of gel and polish. It cures under the light box as Torfamm stated. The pedicure polish lasts many weeks. We’ve been very, very happy with it.
The Fire and Ice uses hot stone massage and finishes with a cooling gel. The Elemis uses massage with your choice of two scents, either a frangipani mix or other lighter scent, as I recall. Both are very nice, and not overpowering at all. Both massages involve foot up to knee.
Enjoy!