Question on Rek'Sai's tunnels
So I heard that Rek'Sai's tunnels would be visible to the enemy via their map. My question is that is this visibility given the instant Rek'Sai tunnels? This would give enemies an immediate heads up on Rek'Sai's position, leaving her open to ganks and removing much of her stealthy aspect.
I'm hoping the visibility is only given after a certain amount of time or something along those lines.