Visiting New Orleans from WNC mountains, any good places to take our golden to swim?

Hello! I have searched Reddit a bit but haven't found any recent posts (< 3 years or so) about this. I am coming down to NOLA in a week with my 100-lb golden retriever. We spend a ton of time in the rivers and trails here and she really needs a fair bit of daily exercise. Are there any good spots for swimming, off-lead play, etc people would recommend that I could take her before exploring the city without her? I'll be near-ish to the French Quarter.