want to take my bf to a nice romantic place for a couple hours, something like

http://www.oasishottubs.com/
and the Bubbly Tub & Tan

but i want so see if there are any other places like it that are nicer.

im looking for places in the metro detroit area in michigan.
(preferably oakland county but any other one in the area works too)

all the spas that i found online are like the waxing n massage spas, but i want like a hot tub one,

by the way does anyone know what the hot tub places are called?? i keep searching "hot tub spas" but that doesnt work