Whakatane Coastguard Boat Crossing the Bar in a Yamaha Powered Naiad RIB Karel Overlaet, RIB Advocate This Coastguard Boat Yamaha Powered Naiad RIB heading out and returning over the Whakatane bar. This Naiad Rigid Inflatable Boat has an aluminum hull. Others Also Read...RIB Naiad 10 m (2008)Crossing the AtlanticMercury Unleashes New V10 400R High-Performance Outboard Hydrogen and Electricity Basic Pros and Cons