You were all so great at my last post I want to thank you.
We could not get 3 days in a row anywhere at NOTL so we are going to book 2 days by the falls & 2 days at NOTL. We figured the last day to do a couples spa day. (yea I like to get a little pampering too).
we will probably stay at the Embassy Suites Hotel Niagara Falls / Fallsview or the Marriott in NF. I called NOTL Chamber of Commerce (905-468-4263)they suggested the Harbor House . So any Spa suggestions???

The best (and I think only) spa in NOTL is at the Pillar & Post Inn. They've also got a beautiful indoor pool with the spa.

Without a doubt, and hands down, if you want to spa it in NOTL, then check out White Oaks - you can check out their website to see the 'couples' spa packages offered and as they are next to a really great new golf course, I believe they offer spa and golf packages to please both. The White Oaks isn't much to look at from the outside and it's just off the QEW outside of NOTL, but once you walk into your room you won't even notice. The regular rooms have gorgeous large fully equiped bathrooms (double door entry) and the beds are so high and cushy you almost need a step to crawl into them. Bedding is all 300 count percale covered in big fluffy comforter. The suites have a separate sitting area with a fireplace, and the bathroom is equiped with jacuzzi and even a small t.v. over the vanity. The spa provides a tremendous range decadant services. Go now and check out White Oaks Inn & Spa.

I agree with both of the above posters.
If you want to stay in NOTL then the Pillar and Post is your best bet! It's terribly romantic and perfect for a couples day at the spa!
The WhiteOaks also has wonderful facilities but lacks the character of Pillar and Post! I believe it offers more services though. WhiteOaks is not in NOTL though, it's outside of the immediate area, off the highway.
Megg

Also in the Vintage Inns, you can visit the spa at the Prince of Wales Hotel. They have slightly different treatments than at the Pillar and Post. I find POW spa to be more tranquil than Pillar and Post. Pillar and Post does have this really nice outdoor whirlpool though.