SIS has recently completed a project in conjunction with Engineered Water Systems of Perth, Western Australia. A wave attenuation system was constructed using SIS FRP components due to their high strength and non corrosive nature. This is an extremely effective and durable system designed for the mitigation of wave energy where permanent type breakwaters are not acceptable or cost effective. Waves, and wakes formed from passing boat traffic, can violently rock harboured crafts making it difficult for their owners to enjoy them while in port.