It depends upon which section of TN. From Memphis, Gulfport/Biloxi beaches are the closest From Nashville, Destin/Ft Walton Beach/Panama City are the closest From Knoxville & the Tri-Cities, Hilton Head, Myrtle Beach, Charleston, and Wilmington, NC beaches are the closest with numerous beaches in between
The driving distance between Knoxville, TN and Elizabethton, TN is approximately 115 miles. The driving time would be approximately 2 hours if you were to travel non-stop in good driving conditions. (The driving time does not take into consideration conditions which may extend trip time such as weather, road work and rush hour traffic in urban areas.)
The closest beach to Nashville, TN on the Gulf of Mexico is Panama City Beach, FL (461 miles, 7 hrs, 58 Minutes) Travel down I-65 Also nearby is Destin, FL and Mexico Beach. If you want WAVES on the Atlantic Ocean, head to Savannah, GA (Tybee Island Beach) - 497 Miles, but only 7 hrs 56 minutes. Travel from Nashville on I-24 through Chattanooga to Atlanta to Macon, GA to SAVANNAH. While there, be sure…
There are establishments with that name all across the United States, notably in Nashville, TN. Assuming you mean the one in Murrells Inlet, Myrtle Beach is the closest city to that. Wilmington, NC is the next city north and Charleston, SC is the next city south. Charlotte is the largest city in the region.