Concrete pontoons stand out in contrast to other pontoons for its stability and durability. The concrete pontoons are filled with foam plastic and are resistant to freezing in as well as to salt water exposure. The pontoons, from the heavier breakwaters made of concrete to the lighter ones made of wood, are designed to last for 30-50 years. The all concrete and styrofoam construction of the pontoon produces a very high degree of buoyancy thus making it virtually unsinkable. It is practically maintenance-free and has little or no impact upon Nature and the Environment. Each standard pontoon is designed to accept electrical and water supply services.