Shop our official Arena Open Water goggles online! Arena Water Instinct has developed a range of Arena open water goggles as part of their Arena goggles range. Arena open water goggles have been specifically designed for outdoor conditions. Arena swimming goggles for the open water are a great option for triathletes and open water swimmers. Popular Arena swim goggles for the open water iclude the Arena Cobra Tri goggles. Swimmer is an official Arena Australia stockist.