Where is Colossal Aldmeri Grotto?

Altereddo

The summerset celebration has been going on for a week. Shouldn't the grotto appear on Summerset's anniversary celebration?

Taleof2Cities

Colossal Aldmeri Grotto was not referred to in the Event news clipping, @Altereddo.

So, I wouldn't expect it to be offered during the Event.

Not sure when it will be available again, but keep your eye on the monthly Crown Store previews.

https://www.elderscrollsonline.com/en-us/news/post/58487

drzycki_ESO

I've been waiting for this also and hope it becomes available soon.