The Sokkala Sky Crystal

In the Sokkala Sky Archipelago, you receive this quest when you check on the empty shrine.

How to Complete the Quest

First, go to Natak Shrine to start the quest. The beam of light will point to the spherical island nearby. Rotate the launcher in the middle of the shrine's island, then stand on it to be launched to the spherical island. Glide down through the hole in the south side of the spherical island.

You will find the shrine crystal, as well as a floating object in the middle of the floor. Use Ultrahand on the floating object, and hold the R button and press left twice on the directional pad to rotate the hole in the sphere such that the Zonai springs can launch things through that hole. Place the shrine crystal on the springs and hit the springs, and the crystal should be launched to the island with the shrine. Wait for a few moments and watch the location where the shrine crystal had been, in case it reappears. If it reappears, that means that it didn't land on the island, so you have to try again. You can try adjusting the angle of the hole in the sphere, for example.

If the sky crystal doesn't reappear, hit the springs to reset them, then stand on them and hit them again to be launched to the shrine island. Take the crystal to the shrine, and Natak Shrine will open.