Very cool Dan!
Question: the reef at that location does not look very healthy - lots of rubble. What is your assessment of the condition of the reefs there?
Yes, a lot of coral rubbles

. Racha Yei island is within Phuket province, an hour boat ride from Phuket. My guess is there were too many cattle boats, bringing ~ 30 divers / boat, many of them were beginner tourist divers, in the past. Covid may have reduced the numbers of divers going there, hence, slowed down the coral beating a bit.
My guide was from See Fun Divers. He told me that our boat is the smaller cattle boat, carry only 15 divers at the time with divers to DM ratio of 2 at the max. I counted about 8 DMs, including 1 DM in training and one diver taking deep dive class with an instructor (so it was diver / DM ratio of 1).
We are going to Similan islands next week, supposedly more remote dive sites, hopefully, less rubbles. We’ll see.
I went to Patong Beach for dinner. My buddy said before Covid, that place was used to be so packed to the point of rubbing shoulders or stopping to let other passes in the narrow sidewalk was common. That evening the crowd was probably about a quarter of what it used to be. We were easily walking without stopping or bumping to each other. The best time to be there, according to him.