When did they have worship in the parks? Or are you referring to the Mass at Luau Cove at the Polynesian?
The Shrine is much more church like and just as easy to get to on Sunday morning anyway!
***When did they have worship in the parks?***
Disney cancels weekly worship
http://www.freerepublic.com/focus/f-news/816794/posts
Disney World Boots Christian Worship Services Off-Site
http://www.freerepublic.com/focus/f-news/811476/posts