Looks like I have to start fishing to get food, to get stronger and use the pulley. I haven't found any bait yet, but something weird happens. There is this small pool area where the tide comes and goes, and I thought, maybe I need to catch smaller fish first to get a bigger fish later. So at that place, I typed: attach net to pool. I think.
The description of the place "Narrow Strait" doesn't mention trees at all, but the game tells me that I've just crafted a hammock between two trees instead of my intention to filter the pool, or try fishing something with it. ^^' Now there's a hammock there on that Narrow Strait, and I'm not even sure if it actually is supposed to be there. Haven't tried sleeping on it yet.