The major concern for safety in South Iceland are the roads. The roads leading inland from Selfoss are very narrow and drivers should take special precaution. The national road from Reykjavík to Hveragerði, a mountain pass called Hellisheiði, can be particularly dangerous in winter, as blinding snow storms, icy roads and strong wind is common.
As the southern coast is open directly to the Atlantic Ocean, it's important to be very careful when on the beach. Appearances can be deceiving, and tides can be strong. Tourists have been killed when suddenly swept out to sea.