Smile!
Whenever SCUBA is marketed to the public, the point of entry is always how pretty everything is underwater. Go to any SCUBA marketing collateral and you’re guaranteed a photo of healthy coral reefs with schools of red anthias and other fish swimming in nonchalance. Don’t forget the diver in the pink wetsuit and huge yellow mask. I spent more than a year diving reefs, going to average depths of about 60 ft and deeper to catch glimpses of the “busy” underwater life.
After a while though, you start wanting other things. Even if they’re less beautiful and more bizarre.