Beginner seeking advice!

Hi all,

Now the sun has arrived I would like to go to the coast for a bit of
fishing. Problem is I am fairly new to all this so I have a couple of
questions you all may be able to help with.

Firstly, I intend to just use either feathers or spinners simply so that I
can get some practice casting. With that in mind, I was thinking of going to
either Portsmouth or Hayling Island this evening. So my questions a

Are the venues I have in mind appropriate?
Realistically, do I stand much chance of catching anything? If so, what
might I catch?

Thanks for any advice anyone can give,

Andy.