New Skyblock is an incredibly challenging survival map where the objective is to survive for as many days you can using whatever resources you find. Naturally there is an extreme scarcity of resources and you must think carefully before using an item. Waste is not an option and will lead to certain death. Give this challenge a try and let us know in the comments how long you survived.
Start off in the overworld on an island in the sky. The only things you will have are the items found in the chest and whatever blocks you can find on the island (and surrounding terrain).
Try to build a Nether portal and go there to explore the hellfires of the Nether regions.