go down there a few times mate, see if you can have a chat with someone fishing,
they have an insta account as well, you could try that but i reckon they get a lot of enquiries and the guy will no doubt be fed up of answering them, my advice is go down there and loiter around for a while, see if you can catch him yourself, or one of the members, they might have a contact number, nothing works better than face to face
one of my mates got in there first time of asking, he bumped into the owner and got a ticket straight away, it's not a difficult place to get a ticket for.