Chorus fruit when eaten will restore 4 () hunger and 2.4 hunger saturation, and does not require the player to have less than a full hunger bar to eat. The player may also be teleported: up to 16 attempts will be made to choose a random destination within ±8 on all three axes in the same manner as enderman teleportation, with the exception that the player may teleport into a 2 block high area. However, the tendency to avoid water remains, and the player can not teleport into a space occupied by water or lava. If a teleport succeeds, a sound similar to an enderman teleporting will play. Chorus fruit has a cooldown of 1 second before being able to be used again. The cooldown is represented by a white overlay on the chorus fruit in the hotbar.
(kopierat från:
http://minecraft.gamepedia.com/Chorus_Fruit)
Där står det att det är minst 8 blocks man kan tpas utanför alltså får ni bygga lite mer runt om än ni gjort nu eller att sätta vatten runt om enligt wiki.