Those who have experience with outdoor tables, especially near water,know that maintenance is a big issue as these tables are constantly attacked by dust, moisture etc.
In a clothing shop that was closing down we bought several mannequins of different sizes and materials. Some of them were hollow inside and we got the idea to use them as a mould and filled the inside of the bodies with concrete.
On top we used a motorcycle tyre as mould which serves as the table plate. Some of these tables were installed inside the water and in between the Dubai islands where fish now bread underneath and were natural weeds and water plants find perfectly their way.