A French tourist has died in mysterious circumstances at The Pass at Byron Bay.

The 22-year-old died after he was found on rocks at the base of the lookout at The Pass yesterday morning.

He was last seen by friends about 4.30am and was found at the base of lookout a short time after 6am. He had fallen about 20m.

Police said he was alive at the time.

The man was airlifted to the Gold Coast Hospital, but died about 11am.

Police inquiries are continuing. Anyone with information is asked to phone Tweed-Byron police on 07 5536 0999.