Clients booked a ocean salmon trip. I told him conditions would not allow us to get out. He replied they were down for any type of fishing that was in season. I told him there were pink fin perch in the river and a chance of salmon in the river. We met at the dock at 5:30 in the morning by 8:00. We had our limits of perch and I asked him if they wanted to try for salmon in the river. They replied they were down for it. About an hour into the troll. We hooked up on a Chinook stripped a lot of line. It looked like it was a good size fish. It ran underneath the boat. Before i could get the client to hold the rod down and out. The line ran across the bottom of the boat and snapped our 50 lb braid. The clients have never hooked a salmon before. It seemed like they're happy to just have one on the line.