After the bell, shares had dropped 3.7% to $28.25.
The marine park operator reported a net loss of 56 cents a share over the three months to March, 7 cents wider than analysts surveyed by Thomson Reuters expected.
Revenue of $212.29 million was 11% lower year over year and missed expectations of $216.77 million.
Attendance at parks declined 13%, partially a result of a later-than-normal Easter holiday.
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