[amy56]

We have done the four park challenge when we had one day in WDW during a Disney cruise last October.

Tbh it worked really well (we actually did five parks as started and ended in magic kingdom & had a table service brunch at The Crystal Palace), BUT we did have six fast passes (3 regular ones and 3 that could be used at anytime, in any park), so we were able to ride lots of big rides that way - without those I think it would of been difficult, as our fav rides in each park tend to be headliners, and if we weren’t able to get on those, we probably wouldn’t have bothered making the effort to do all four parks.