The announcement confirms Howl-O-Scream will return to SeaWorld Orlando and San Diego for a second year.
Riders will swing up to 135 feet in the air and go as fast as 68 miles per hour.
Both Aquatica San Antonio and Tampa's Adventure Island will get dueling slides with two-person rafts.
The 2021 edition of the SeaWorld San Antonio event will feature a brand new haunted house.
SeaWorld San Antonio and the two Texas Six Flags parks will continue to limit capacity and require face masks.
On the plus side, per capita revenue, admissions, and in-park spending increased in 2020.
With a greater share of locals visiting Disney World right now, the disparity between weekend and weekday crowds has grown.
Busch Gardens Williamsburg is one of three SeaWorld-owned parks that remain closed.
SeaWorld San Antonio will reopen on June 19 with face masks and advance reservations required.