I can mention a few new England spas with saunas, not that many guys here monger in NE. Cheon Su in Salem CT has the best. Clean and very warm. Shogun, near Mohegan sun has a nice, very large comfortable one. Silver Lane in East Hartford has one that's rather tepid, but I've been able to get them to turn it up, calling ahead. And Far East in Pawtucket has a nice one, but you won't stay in it long because the girls are having hotter than the sauna.