Skylands

Flying upwards from the survival server will result in teleporting to the Heaven world. Here warps, /tpa and /home commands don't work. To get between islands you'll need to fly with elytra so best bring a good supply of rockets. It's always day here but in caves and unlit builds mobs can still spawn so explore with care.

Can you fall out of Heaven? Sure! Flying too low will return you to survival server. There have also been deaths from those who fell off islands in heaven and hit the void before they teleported so keep an eye on your elytra durability.