[quote=@ImportantNobody]
I assume there are large openings in each dome to walk through? It doesn't seem like it would have doors but that's just me. Most of the holes in the domes are very small, right? You can see through the walls but not pass through them from what I picture.

<Snipped quote by Vordak>

However, this makes it seem like the domes are blocking a lot of the light if the light only comes in from the top where glass is.
[/quote]

Nope, they do have a sort of doorway, but simply writing 'they have large openings to walk through' didn't appeal to me, so i left that out, hoping it would be self evident that it has some sort of entrance. :p

Three layers of domes covered in ivy would let very few light through, so that indeed is the case. (the entrance would be 20 meters away from the practice ground itself, so it wouldn't provide that much light either).