LGA to Brooklyn Bridge Park?

Hi! We are trying to hit the bridge right after we land and meander our way to our hotel. We assumed that it would be easy to get there but it looks like we would have to take the Q70 LaGuardia Link to the subway, across to Manhattan, and then back down to Brooklyn. A Lyft/Uber looked pretty expensive, and the backtracking is what we're trying to avoid. We're ok taking a ferry/subway/bus or anything else! Just wanted to see if I'm understanding Google Maps and the extremely helpful visitors guide in this sub correctly!

Thanks so much!