How can I add an anchor link to my holiday collection list?

I have a holiday collection page in which I have created a collection list at the top of the page with different holidays to choose from. Clicking a holiday such as Christmas updates the collection below to products that correspond with that holiday. I want to add an anchor to the Collection so that when a customer clicks on one of the collection list images at the top of the page, it jumps to the corresponding collection below. This seems simple enough, as I can add custom html to my theme allowing me to place an anchor above the collection which I labeled “start”. However, I can’t figure out how to link to this since shopify will only let me select a collection as the link, it won’t let me add start to the end of the URL. I’m guessing I need to use metafields for this? But I have no idea how to do this.