Start by navigating to Tripadvisor and your page.
Once there, find the Write a Review link and click it.
Copy the URL of the page that opens up from your browser's address bar. The URL should look something like this:
https://www.tripadvisor.com/UserReviewEdit-g189942-d8142981-Natural_History_Museum_of_Central_Finland-Jyvaskyla_Central_Finland.html
Once you have the URL, you can plug it into Trustmary's widgets for review collection. Check out this article to find out how.