Ballycoursey Day Spa is such a nice, relaxing experience.  The staff are so nice and they make it more personal, you won't want to leave.  The lunch is lovely too.  When visiting during the summer, the weather was lovely and there is a decking area which you can sit out on and enjoy the sun and they will call you when it was time for your beauty treatment.  It would be lovely for a hen party, mother/daughter day or just a treat for yourself.