>Ignore the branches and carry on.
>You carry on down the main tunnel. Soon, you start to hear the sound of running water in the distance; at first, just a faint trickle, but eventually you discern what you think is more than one source. After a time, the tunnel starts to flatten out and widen; stalagmites protrude from the ground here, many of them large enough to conceal a person behind, and some of them rising all the way to the ceiling. You can see a couple tiny stream of water, issuing from the rock and then flowing along the incline of the tunnel, narrow channels carved in their wake. Soon you spot a more vigorously flowing stream, emerging from a very narrow tunnel to your right; far too narrow to walk through.
>The tunnel narrows again, and twists to the right. There are a series of small pools along pathway that you're forced to navigate around, possibly fed by slow drips from the cavern ceiling over many years. The larger stream from earlier runs along the right of this section of the tunnel, swelled from several smaller streams along the way. At several points, water issues from gaps in the rock in a sort of waterfall, tumbling towards this river. Some of them are fairly vigorous; there must be a large place for this to drain into eventually, or the entire cavern should have been flooded by now.
>You hear a sudden splash to your right!