It's all thanks to the state's new theme park regulations. Not all rides were back in action, as some other rides and attractions will reopen at a later date.
As with the Disney parks, admission is limited to California residents only for the time being.
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Capacity is limited to 25% and groups can contain no more than three households.
Masks and physical distancing are required.
SeaWorld reopened in February, but could only operate as a zoo and aquarium, not as a theme park.