Hello! In planning on surprising my grandparents with a trip to Walt Disney World (their first visit!) for the 2015 Flower and Garden Festival. My grandparents are elderly (early and mid-70s) but are very active. My grandma is the one with some mobility issues (joint pain). I know we will be taking full advantage of whatever resort amenities are offered so, what resort would you recommend that is not too expansive but is great for relaxing? Thank you!