How to get wishlist??

Hello!

I booked our reservation through Costco a few months back when they were running a deal. We are staying at the Arte.

We won’t be there until mid-August for our honeymoon. I keep seeing people talk about a wishlist to make reservations for restaurants and activities. How do I get this form? Is this something I can get ahead of time (aka now) or do I need to wait until my trip is closer? I’d love to get this done soon so I don’t have to worry about it closer to the wedding, but just not sure where to start. Would love to hear people’s experience with this, specifically anybody who booked through Costco. P.S If there are any recommendations I am all ears!

Sincerely,
An excited but a stressed out bride