I was fortunate to visit Katmai about a month ago for photography purposes[1], and hanging around the bears was one of the most amazing things I’ve done in my life. The bears I watched caught a fairly large salmon roughly every 30 minutes, almost all day long. It made it easy to even get video[2] of the fish jumping straight into their mouths. They were all almost noticeably fatter when we left!
[1] https://www.instagram.com/p/CULaowjLYBj/
[2] https://www.instagram.com/reel/CUF8Z7_p9po/