Here is a unique map for survival, floating islands in the sky easily confirm this. You’ve seen somewhere a series of islands in the sky, connected together by small steps and in fact to move from one island to another you have to work hard. The only advantage of this map is the absence of hostile creatures, so you can not even think about protection and weapons.
Parkour is your main problem on Sky Jumper, it is long jumps that separate you from the rest of the islands. Having reached the first island, you’ll enter a small antique house, inside of which there are objects for survival.
Sky Jumper Map installation:
Download the map and unpack it here: /.minecraft/saves.