did this buck just walk into the river for a swim?

the reason for this ? is i've witnessed twice strange deer behavior while fishing. once on the kalama i was fishing on this rock bluff below a home that was very close to the river road. this doe comes through the trees, near feet from me and jumps into the pool i was fishing. it was shocking, i thought i'd see a couger come next. this doe crosses the river and continues it's run into opposite forrest. still no pursuer. i actually looked to see if a couger had stopped it's chase when i t saw me. it was actually a strange scene.