They refurbished Tybee beach last winter all you'll find is a few coins right now no one is in the water too cold still, also SOOO sanded in and the film crew making the movie "Bay watch " won't let you on the beach Mon - Fri. from the pier to the south jetty.
did I mention I live not far from Tybee and hunt there 3 - 4 times a week and talk to the police, trash pick-up crew and the life guards all the time and no problem metal detecting there as long as FILL IN YOUR HOLES !! They don't like to see our holes left uncovered ...other than that have at it !!
only found one silver and one gold ring so far this year other than the usual trash and clad !!
good luck !!
OH !! the weekends of 16-17 and 23-24 are ORANGE CRUSH weekends so bring your CCW and don't go out after dark !! LOL