Hotels with a Private Hot Tub

minimoneysaver

http://www.guysthatchedhamlet.co.uk/
This place has spa baths in the rooms. The whole set up is lovely. Worth taking a look. x

Yorkshiredad

Cracking place near Taunton if that's any use
http://www.offpeakluxury.com/hoteldetails-offers.cfm?hotelID=89

theonlywayisup

Not sure where you are but Dartmoor - luxury house http://www.survivingsolo.co.uk/bb.html do B&B and whole house rental.

I haven't been but an employee has and said it was amazing.

Barney_McGrew

Yorebridge House in Yorkshire............

http://www.tripadvisor.co.uk/Hotel_Review-g1062542-d953801-Reviews-Yorebridge_House-Bainbridge_Yorkshire_Dales_National_Park_North_Yorkshire_England.html