Coming from Hamburg you take the A20 until exit "Rostock-Südstadt" and then you follow the signs direction "Zentrum", "Steigenberger Hotel Sonne" or "Hotel Sonne".
Coming from Berlin you take the A19 until exit "Rostock-Süd" and then you follow the signs in direction "Zentrum", "Steigenberger Hotel Sonne" or "Hotel Sonne".