MLK Day crowds?

[CyndiLooWho]

My BIL and my son are taking a long Orlando trip in January. None of us realized that their plan puts them arriving the Sunday of MLK weekend (BIL works with horses, not ppl, and has no holidays at work).

I know WDW is typically slammed that weekend, but he also has Sea World on his list of things to do. Will they be super busy as well?

 

[drenalin'junkie]

Typically not that bad. It's only recently that the parks get busy after NYE. We used to walk on to most rides in all the parks til nearly spring break.
Getting there just before the parks open is the best way of dealing with crowded dates.