My parents are just three years older than yours and we have been to WDW several times. Just in the last three years, I have finally convinced my Mother to go on Space Mountain...we are slowly trying new things! My parents are not into thrills so they stay away from Tower of Terror, Rock'n Roller coaster, and Mission Space. My parents love Haunted House, Peter Pan, Snow White, Carousel of Progress, and Buzz Lightyear at MK; at MGM, they love Star Wars, Who wants to be a millionaire; at EPCOT, Test Track, Ellen's Energy Adventure, and of the countries; at AK, the safari, It's tough to be a bug. If your parents have any back or heart troubles keep them away from ToT. Have a great time with your parents!