In E”Y, if you’re in the central area, Ganei Yehoshua (Park HaYarkon) is very nice. Most of all, I enjoy walking all the way from Tel Aviv Port / the Sde Dov area, from the sea, all the way along the Yarkon to Bnei Brak (you end up near the Ramat Gan stadium / Ayalon mall). It’s a 2 hour walk, green and quiet and plenty of places to sit.
I even did it with my wife when she was in a wheelchair after having surgery, 2 days before we left E”Y to move to Europe. But we were there on one of our shidduch dates also, a looooong time ago.