Thev.. another school of thought. This is a busy sight, and a lot is going on. I’ve seen some larger city sites and keeping it simple might be your best option. My opinion only. If you’d like more info on your buttons how about a large sticky dark coloured rectangle on top. Type your categories/buttons in white. Move those onto your rectangle and just create links. You could also make the text color change as rollovers. Here’s a busy sight.
https://www.saskatoon.ca/
Another option might be creating a new page for sub categories .. melfortmuseum.org. Click on “events” this takes you to a new page. Would you find that helpful? You’ve don’t this on some of your pages, and on some pages you’ve just added a simple link from text.
Sorry if I’m way of base, but on larger sites you’ll notice on footers, or headers, they’ve listed the navigation in a simple way; and it may work for sites such as yours. I find that roll overs, with many buttons may get confusing. Simply a few ideas.
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