Born: June 19, 1966, Haugesund, Norway.
Gravdal grew up on a small farm in Gravdal, Strandebarm, Hardanger. He was educated at the Norwegian Agricultural University at Ås (1992).
Since 1994, he has taught at the Lyngdal Jordbruksskole agricultural college in Lyngdal, Vest-Agder.
Click here for his home page.