When you click the link wait 5 seconds and then in top right corner press Skip Ad. Then on the next website scroll down until you see 2 links and the a "Download" button. Press it and enter the captcha. Then the map should download. Then go to your ".minecraft" folder, go to saves and put the .zip file inside. Then open it and it should unzip it and make a folder. Keep both files and then close .minecraft. After that the world should be in your Singleplayer menu.
If you liked this map, positive comments are appreciated. If you have any questions or troubles with the map please contact me and I will help you.
If you are recording this for Youtube please give me a shoutout and I will put your video for viewing.