On Fri, 07 May 2021 00:37:01 -0700, Leo wrote:

> Currently, my guess would be the Bay of Fundy on a big wave day, but I´m
> not a surfer.

Well, there is the tidal bore in Moncton. Take a look at the video near
the midlle of the page. I'm not sure how that would work for surfing.

https://tidalboretimes.ca/