How knows how to do the effect by photoshop filter or action name?

Hi there:

I find the photo's color is beautiful. Green and blue are sharp and vivid. I guess the original photo is normal photo. Designer used filter or action to do it.

But I do not know the name of filter or action name. How knows, could you please guide me?

ref url: http://www.realestate.com.au/buy/in-wheelers+hill,+vic+3150/list-1

Thank you.