1. The best way to download maps in Minecraft is to visit a Minecraft map website. An example of where you can get the Minecraft map downloaded is https://www.minecraftmaps.com/.
2. Once you are on the website page, the next thing you should do is to select the appropriate map you want. Click on the map, and you will be able to download it.
3. Although, on some websites, you won't find it very difficult to download a map since you will only need to click on the download button, there are others that will require that you click on images or Skip Ads before you can successfully download the map.
4. You will need to wait for the download to complete. It is usually downloaded into a Zip or RAR folder. However, you will need to unzip the folder.
5. Once you are able to open the unzipped folder, copy the map folder, and prepare to install it.