I guess depth is going to make a big difference too. I've eaten at an underwater restaurant[0] before that was shallow enough that it was bright and sunny (whil

I guess depth is going to make a big difference too. I've eaten at an underwater restaurant[0] before that was shallow enough that it was bright and sunny (while still being very much underwater), and I could see that working well. 0: https://www.conradmaldives.com/dine/ithaa-undersea-restaurant/ https://www.conradmaldives.com/dine/ithaa-undersea-restauran...