I've had a few scenarios play out from past lives in sort of a 'movie' in my 'inner vision'. It can be really eye opening.
One of these was in Atlantis and was a momentary glimpse plus associated feelings about what was going on. As this was just at the end of Atlantis it was a disruptive, chaotic feeling. There was a lot going on. Then, gradually more pieces fell into place and a story emerged regarding the last days of Atlantis and how a group of us fit in to what happened.
Other past lives have also come into my mind's eye; again, typically as an initial glimpse, sometimes with followup later and sometimes enough to build a 'story' of what had happened. Often the initial glimpse was of an emotional moment.
I cherish these glimpses and what they bring me. Each one has been truly fascinating.
Yours sounds beautiful!
And why not be a dolphin that visits the bottom of the sea, viewing the remains of a place you loved so much and spent past lifetime/s in?