This is part six in my clichéd treasure island puzzle series, but can be solved on its own. The story carries on from part five.
Based on the information from the notebook, you at least know where to start. You head towards the sound of rushing water - briefly wondering what happened to your friends Frank and Joan - before deciding that they must not have been important enough to the plot to warrant keeping around.
You arrive at a densely bushed riverbed, and find a short path between the foliage to the riverside. Looking across the river you see another such path leading away a bit downstream. Bridging the river is a grid of perfectly flat almost square stepping stones, apparently engraved with some form of ancient hieroglyph.
A top-down view of the situation - you are positioned at the clearing at the top of the picture.
You take a look into the notebook to see if it has any wisdom to offer. There is a random and barely legible entry that looks like it might be related.
run run o wot fu n we so l ight fl y my two son o ye eh runn
Can you find a path across, and directions where to go next?
Attributions: All icons courtesy of Icons8
Apologies: To all graphic designers out there offended by the multiple styles