http://www.relaxedyet.com/ this is for the Grand Floridian.
The Disney Institute is becoming SSR, and isn't re-opened yet. Most of the resorts offer massage, but not much else.
Grand Floridian spa is nice. You can park at the Wedding Chapel. I bought my wife a 3/4 day custom package, and she loved it. Strange that Disney doesn't offer the info on their website somewhere.
Dave