A driver suspected of DUI traveled the wrong way on SeaWorld Drive and hit two vehicles outside the park's entrance, according to San Diego police.
At about 9:10 p.m., a man in a red Ford F-150 started driving east in the westbound lanes of SeaWorld Drive.
As he neared the SeaWorld entrance at S. Shores Road, the driver hit two other cars, police say.
One victim was left with a broken arm. It's unclear if there are other injuries.
The suspected DUI driver was seen taking a breathalyzer test on the roadside as police arrived.
The westbound lanes of SeaWorld Drive were shut down as the crash was investigated.