Big three hour hike down the Tolka, into Finglas (technically) and then back again. It’s an amazing mucky, hidden treasure, although not without its perils.
At this point we ran into some scrambler riders, determined to blast across the stream. They did not. The first one got halfway across, got stuck, and fell over into the stream. They gave up, possibly from embarrassment. Why noöne makes any effort to stop this is always beyond me; they make the trail dangerous and unusable for anyone else.