I just got back from staying at the Comfort Inn Lake Buena Vista. We never went to the Crossroads but did see the signs. You turn right at the 1st traffic light, after you get off I-4. Comfort Inn is the next traffic light and turn right. I guess if you walked there you could cut across somewhere, but I don't know where. We walked down to 535 and it was a pretty long walk for my little ones.
We liked the hotel, staff were really nice.