How do I build a search query that gets me data through google search?

I have a project that I'm working on where I need to pull data pertaining to specific parks in Florida. For example, my question on this post is about how I can program R to go through a search query through google to get areas. When I type in "area of wekiva springs state park in hectares" into google search I get an actual value from the top of the page "2,833 hectares). Now I have a list of 52 parks:I have a project that I'm working on where I ne