If my wife and I go together, are we separated while there or are there plenty of things we could do as a couple, ex .. scrub, massage. sauna, etc... I understand that the pool is seperate

Yes there are many saunas yall can do together and the couples massage. The body scrub is in the pool area so you will be separated for that part

There's a nude area (pool, jacuzzi. steam room) for each gender separately for obvious reasons... Now the open area is for everyone and they give you a uniform to wear. The open area has saunas, a rest area, and cafe/restaurant. The body scrub also occurs separately as far as i know in each nude area. Try king spa that has more couple oriented things to do. Their nude area is rather small, so more things are rather bigger outside that and to be enjoyed with someone else.