Entering the fiords that neighbor Kristiansand we passed the Gronningen Lighthouse. The lighthouse was built in 1878 to improve the marking of the shipping lane into Kristiansand harbor. In 1842, the Russian ship-of-the-line Ingermanland had collided with the Grønningen islet, leading to a catastrophe. The current lighthouse sits on Grønningen, a bare islet in the Kristiansandsfjord, and it marks the eastern side of the main shipping channel that leads inland to the port of the city of Kristiansand.