Using Google Maps
If you search and navigate to the place you want on https://maps.google.com. Then scroll the left-hand side panel down until you see the Review Summary. By clicking on the total number of reviews, the address bar in your browser will then be updated to a link that you can use to send someone to this panel.
For instance, here is a link I was able to generate for a tourist destination:
Unfortunately, it is not a simple link. But it is easily produced.
Using Google's Review API
Google has restricted review data in such a way that it is only accessible through their API.
Some time ago, you were to be able to embed your google reviews in an
iframe using a link that was provided to you by google. Nowadays, one of the ways to leverage this API is to use a widget that comes with your CMS (if you are using one), you can also setup Google's My Business API, and pull reviews that way. Do note that it involves registering your app with google as well.
[Reviews] used to be relatively easy to embed a few years ago, but Google has since phased this solution out.