Manavgat Waterfall

Yes, there is a small entrance fee to access the main viewing area.
No, swimming is not allowed due to strong currents, but there are nearby swimming spots on the river.
There are cafés, restaurants, souvenir shops, restrooms, and shaded seating areas.
It is a natural waterfall, though water flow is partially regulated by nearby dams.
Spring and early summer offer the best flow and scenery; mornings are quieter.