From my trip to Northern Scandinavia: on a beautiful sunny day in August at the Lofoten Islands, I went for a hike and a swim in the ocean on a remote spot in the mountain area not far from Henningsvaer. When entering the water I noticed some spots on the rocks in various colors, and by further inspection I realized it was sea snails. Challenging to try to get a good photo of these, but I tried since it was such a beautiful sight and the light was perfect for photography :-)