How often can we open the large turquoise seashell in Oskayaat ?

Question

Visiting a new island called Oskayaat I found a large turquoise seashell.

Upon opening, I received a Conch Shell .

How often can we open the large turquoise shell? The action is the same as after opening the shell as on Calassa?

Answer 1

You can open those large turquoise seashell every 10 minutes. Small tip - there are 3 spawns with those shells(red dot on the map):

After removing the item from the shell, you have to wait 24 hours before the shell can be opened again.

Answer 2

Every 10 minutes. According to the latest quest that I did. Which I think its too much considering that first day there was a large backup waiting for that crap to close again.