Swimming with humpback whales moved me far beyond my expectations and was humbling in a wonderful way.
If you are choosing to go to marine parks for the sake of "education and awareness" for your kids, make sure your education includes making your kids aware of what it costs those animals to be there in those tanks. 

Blackfish and The Cove aren't what save whales and dolphins; people deciding to change their behavior after becoming aware of the whole picture is where salvation lies.

I personally think it would be much more difficult for anyone to contribute to such captivity once they've witness whales free in the ocean and with their families.

For some it is a no-brainer that going into an animal's home to kill it is wrong, for others, it is our right to do with the planet as we see fit.  This episode attempts to show the mentality that drives the pro-cull side.  A few reasons people choose the pro-cull side as I see it:

• Political - appeasing the voters of a certain electorate.
  
• Fear - doing anything, even if it doesn't actually help, causes some sort of mental state of believing one is safer.
  
• Money - when the government pays you nearly $6,000 a day to kill sharks it's easier to convince yourself that what you're doing is justified.
  
• God Given - God gave us our advantageous position on this earth to lord it over other animals and no animal has the right to endanger a human on any circumstance.