Bays that are shallow far out into the sea, with fine sand and clay, are rare in Hordaland. Where they are found, the reason is usually that the edge of the glacier made smaller advances or stopovers when it calved back at the end of the last Ice Age. This is what happened at Vinnesleira.
When the lush beach area innermost in Ulvikapollen was protected, the bird life was instrumental to the decision. The plant diversity is just as impressive. In Hordaland sea meadows such as this are rare small in size - they are more common in coastal environments.
If you smell a foul smell out in nature, you mustn't immediately think that the reason is cloaca from houses or cabins. The reason can be an entirely natural process that occurs when plants are broken down under special conditions. When there is little oxygen available, hydrogen sulphide can be produced. This is a gas that seeps up from the earth and smells like rotten eggs.