Hi Huw,

Thanks for your time :)
IsVisible is used for the umbracoNaviHide field right?

My concern is different, based on member group permission, I have set Restrict Public Access for certain nodes.

When someone goes to the site, they should not be able to see the protected page but if that user is already logged in then he should be able to see those items in the menu.

Thank you

You will need to use IMemberManager and do something like

@{
    var selection = Umbraco.ContentAtRoot().FirstOrDefault()
        .Children().Where(x => x.IsVisible());
}
<!-- Navigation -->
<div class="container">
    <nav class="navbar navbar-expand navbar-light">
        <!-- Links -->
        <ul class="navbar-nav">
            @foreach (var item in selection)
            {
                if (_memberManager.MemberHasAccessAsync(item.Path).Result)
                {
                <li class="nav-item">
                    <a href="@item.Url()" class="nav-link" >@item.Name()</a>
                </li>
                }

            }
        </ul>

    </nav>
</div>