Most of my guests arrive by air, and we are located in the tropics (savannah/monsoonal) with either a hot and wet season, or a hot and dry season. Your geography and time of year should be considered in your solution.
So to ensure guests are hydrating from the moment they arrive, I provide a 600 ml bottle of water per guest in the fridge, already cold). Two x 1 litre carafes of tap water cold in the fridge, and ice cubes and ice trays filled to continue to make more.
For “ picnics” I have an empty 1.5litre water insulated flask. But most of all, I let all guests know we have fantastic tap water, so they can refill the personal bottles for organised tours etc. otherwise, glasses and plastic cups readily available for use.
Also like @Huma0 we have recycling bins.