* Zwanendal (literally "swan valley") - This is the most direct translation but might not capture the beauty of the phrase.
* Dal van de Zwanen (literally "valley of the swans") - This is a more literal translation that emphasizes the presence of swans.
* Prachtig zwanendal (literally "beautiful swan valley") - This adds a sense of beauty to the phrase.
* Het dal met de vele zwanen (literally "the valley with many swans") - This emphasizes the abundance of swans in the valley.
Ultimately, the best Dutch translation depends on the specific context and the intended meaning.