It's A Big Sky Island!
NOTE: This is not the original version of skyblock, this is a modified version to make it look bigger.
This makes the main island of Skyblock 3x the size of Skyblock 1.0, and 1.5x the size of Skyblock 1.1!
Now you don't have to worry about losing grass, because there's already a bunch!
There are downsides though, monsters can spawn on the main island at night without doing anything.
(all links to this same Minecraft world are at Curseforge (here), Minecraft Maps, Planet Minecraft, Minecraft Hub, and the Minecraft Forums, don't get it from anywhere else.)