At Brooks River in Alaska's Katmai National Park, the early-season salmon run is in full swing and the brown bears are coming from near and far for an easy meal. This is their summertime pig-out, with long warm days and plenty of fish for all, so they're generally in a relatively peaceful frame of mind (mostly, anyway!). The late-season salmon run in September can be a different story, as then the bears are desperate to gain maximum weight to tide them through their long, cold, winter hibernation and inter-bear relationships can get pretty rough at times.
https://explore.org/livecams/brown-bears/brown-bear-salmon-cam-brooks-falls
If you scroll down the linked page, there's also more live cams in the vicinity, a bit further down the Brooks River. The Lower River cam is in a quieter lagoon area with beaches and sandbars, that's popular with mother bears showing their cubs how to hunt salmon in the shallows.
This screenshot is from the Brooks Falls live cam - note the many salmon in mid-leap on the left-hand side:
https://explore.org/livecams/brown-bears/brown-bear-salmon-cam-brooks-falls
If you scroll down the linked page, there's also more live cams in the vicinity, a bit further down the Brooks River. The Lower River cam is in a quieter lagoon area with beaches and sandbars, that's popular with mother bears showing their cubs how to hunt salmon in the shallows.
This screenshot is from the Brooks Falls live cam - note the many salmon in mid-leap on the left-hand side: