Apparently this lighthouse (and its location) is a featured tourist location in Latvia. It has it's own little island, definitely a lighthouse distinction.
"The Kolka lighthouse is on an artificial island which was created between 1872 and 1875. The original lighthouse was made of wood, and its light was first lit in June 1875. As the island settled into the sea, the current tower was built. It began operations on July 1, 1884. Today the lighthouse is six kilometres from Kolkasrags at the end of its sandy shallows (back when it was built, it was just five kilometres away). The island still has the building for the lighthouse supervisor, as well as several outhouses. The metal lighthouse [21 meters in height] which is there now was built in St Petersburg. It has been an automated lighthouse since 1979."
For more information, I'm providing three different links about it.
The Kolka Lighthouse (the Map tab shows where it is)
Lonely Planet: Kolka and Cape Kolka
Here are the pictures, including the Kolka Lighthouse candle holder and the Kolka Lighthouse stamp.