Looking for a tennis partner

I’m looking for someone to play tennis with. I haven’t played for many many MANY years, but I used to be ok, so should hopefully be able to play some decent rallies. I want to do it as a fun way to take exercise. Prefer to play at Clissold Park, but Finsbury and Springfield Parks are also possibilities and open to other suggestions. Maybe play once a week, or even just occasionally as and when if that’s what you can do. I’m pretty flexible as to time and day. CheersKirsten