A "spa bath" refers to a luxurious bathtub that is often equipped with water jets and features to provide relaxation and health benefits similar to those received in a spa. Full definition
Complete with two bathrooms (complete with spa bath in master ensuite), and are available with one queen bed, and either two kings or two sets of twin beds. (portdouglastravel.com)
These apartments come with the added bonus of a deep two - person corner spa bath in the bathroom. (mantrahotels.com)
1 Bedroom Apartments Feature one queen bed in separate room with capacity for two guests and one bathroom with double spa bath. (palmcoveaustralia.com)