Very nice park. We used to get the take away coffee in the morning (or an amazing local wine in the evening) and sit on the grass, watching people. There are many trees so shade is provided all day long.
It's best to ask locals for directions and go with them/by yourself. They would gladly show you the place, some of them would expect a tip though. Nice waterfall, you can relax in the shade and cool down in the pool.