Þorbjörn(Grindavík), Iceland Þorbjörn (Icelandic pronunciation: [ˈθɔrˌpjœ(r)tn̥]) is a volcanic mountain of 243 m next to the town of Grindavík (Gullbringusýsla) on Reykjanes peninsula, Iceland. Blue Lagoon can be easily seen from the summit. Share this… Facebook Pinterest Twitter Reddit Linkedin