Police are hoping someone out there knows where Alyse Cameron is.
The 31-year-old touched down at Coolangatta Airport from Melbourne at 6pm on Monday evening, but hasn't been heard from since.
Her family raised the alarm after Alyse didn't get on a bus to Byron Bay as planned.
Alyse (pictured below) is described as being of Caucasian appearance, about 165cm tall, of slim build with blonde hair.
Anyone with info is urged to get in touch with police via Crime Stoppers on 1800 333 000.