I would go to the Contemporary if you just want something quick - it will be easy for the grandparents to hop on the monorail and meet you there if they don't want to walk, and it is a very quick walk for anyone walking (plus it has its own screening and security area so it's not nearly as much of a hassle as you might think). Last time we were in MK (September), it POURED on us right at noon and I was able to go back to the Contemporary with a 5 yr old, get fresh socks and masks for everyone, and be back for a 12:30 lunch reservation inside MK.
If you're trying to get in some quiet time and don't need to hurry back, I would go GF. We did that one our first trip to MK and it was SUCH a good decision. It gave us a much-needed break from heat and crowds. The walkway wasn't open at that time so transportation was annoying and shot a good portion of our afternoon. With the walkway it is probably better.
If you're trying to get in some quiet time and don't need to hurry back, I would go GF. We did that one our first trip to MK and it was SUCH a good decision. It gave us a much-needed break from heat and crowds. The walkway wasn't open at that time so transportation was annoying and shot a good portion of our afternoon. With the walkway it is probably better.