The Thridrangaviti Lighthouse is located on the southern coast of Iceland, near the town of Vik. It was built in 1939 and is situated on a rocky outcrop that juts out into the sea, providing a stunning view of the surrounding coastline. The lighthouse is made of concrete and stands 23 meters tall, with a focal height of 28 meters above sea level.

The Thridrangaviti Lighthouse is an important navigational aid for ships sailing along Iceland's southern coast. It is equipped with a powerful beacon that can be seen from up to 20 nautical miles away. The lighthouse is fully automated and remotely monitored, so it requires no resident keepers.

In addition to its practical role as a navigational aid, the Thridrangaviti Lighthouse is a popular tourist attraction, offering visitors a chance to enjoy the stunning scenery of the Icelandic coast. The area around the lighthouse is a great place to go hiking, with several trails leading along the rocky cliffs and past the nearby black sand beaches. Visitors can also take a boat tour to see the lighthouse from the sea or enjoy whale watching in the area.