I went there for a dinner function last month booked by my boss. He is a member there. The security said no public access beyond the restaurant areas. Must have a member accompany if you are going into the marina section.
Nice view with the lighthouse and boats.
You can try to sneak in. but not worth the time and effort if the guards catch and ask you to go home.
Was there a policy change? I was there about 2 years ago, and I could wander inside even though I'm not a member. The security guards just told me that I wasn't allowed to take pictures of the private boats, and it was ok to take pictures out towards the sea after I walked down the pier. I believe non-members could dine at the bar and restaurant there too.