The Golden Rule

Compare these two sentences:

• Click here to learn more about the Wadden Sea.
• Learn more about the Wadden Sea.

The first link text is meaningless, you have to read the whole sentence to understand what the click here is about. The second link text does that right away.

Visitors scan web pages for what they are looking for. Links stand out in the text, so make the text about where they lead. A link text should rather serve as a teaser, as clickbait for the scanning visitor.

So keep in mind that the golden rule is "Make link text meaningful and understandable on their own"