So far, here are the parks (that I know of) that have lifted certain mask mandates:
– Walt Disney World (Magic Kingdom, Epcot, Hollywood Studios, Animal Kingdom) in all outdoor areas. Indoor areas still require masks and all Cast Members must still wear masks
– Universal Orlando (Universal Studios, Islands of Adventure) in all outdoor areas
– SeaWorld Orlando in all outdoor areas for vaccinated guests. Right now, there is no vaccine ID system, so they’re just relying on an honor system
– SeaWorld San Antonio same as above
– Hersheypark in both outdoor and indoor areas for vaccinated guests. No vaccine ID system here either, just an honor system for now
– Cedar Point in all outdoor areas
I’m sure this list will grow longer in the future