What is civ 6 national park?

In Civilization 6 (Civ 6), a national park is a special tile improvement that can be created within a certain area on the map. To create a national park, players must first acquire a specific tile that meets certain requirements such as:

1. Being a natural wonder
2. Containing at least four contiguous hexes
3. Being outside a city's cultural border
4. Being within the player's own territory

Once a player has acquired a tile that fulfills these requirements, they can use a ranger unit to create a national park by selecting "create national park" from the unit actions menu. This will remove any improvements or units on the tiles and replace them with the national park improvement.

National parks provide several benefits to the player, including increased appeal to nearby tiles, which can boost tourism and culture output. They also provide amenities to nearby cities, improving their happiness and reducing their risk of rebellion.

Overall, national parks are an important part of late-game strategy in Civ 6, providing both cultural and economic benefits to the player who manages to create one.