Parents gifts?? Anyone know of spas???

Okay so we are getting FH parents albums

i wanted to get my parents a gift certificate to Gurney's Inn so they could spend the weekend (they like that kind of stuff) BUT..... i was thinking and now i want to get them a spa and hotel weekend in the city...they love the city and tehre is more to do

any reccomendations where i can purchase a gift certificate to a hotel and spa
i found Mandarin Orange hotel and spa but any other suggestions???

Thanks so much

The Peninsula Hotel in NYC has a spa, I hear it's very good.

Away Spa at the W Hotel. (I think it's the Away Spa?)