1
If you like the nature, I really recommend going to the Pyrenees.
If you like nature, I really recommend going to the Pyrenees.
When nature means the natural world in general, we use no article: ‘I love nature.’ ‘We spent the weekend surrounded by nature.’
The nature of something is correct, but it has a different meaning. It refers to the basic character or type of something: ‘We need to understand the nature of the problem.’
2
It’s a country with an incredible nature and amazing landscapes.
It’s a country with incredible wildlife and amazing landscapes.
When they refer to the natural world, nature and wildlife are uncountable nouns, so do not use a/an before them.
Use wildlife to refer to the animals and plants that live naturally in a particular place: ‘The island has incredible wildlife.’
A nature is possible when describing someone’s character: ‘She has a friendly nature.’ It does not mean the plants, animals or scenery of a place.