The peril sort of added to the film. As a diver, I just enjoyed the lovely clear water and tropical reef action. Don't get much of that in the UK's green murk.
I suppose there's always Attenborough's various series, Blue Planet and Blue Planet 2. Beautifully filmed and presented, but latterly tainted by the hectoring about global worming / climate change / we're doomed / it's killing the oceans / woe is us...
