 think about how they can help, how they can be better stewards of streams and rivers. And so it's time to hit the water. Okay, here we go. The mountain rivers provide a continuous soundscape of rushing, rippling water as our snorkel gets underway. I saw a cluster of fish, so I got my head under the water to see who they were. And lo and behold is a magical place. It's called a chub nest.