Categories: Projects, Commercial / Industrial Golden Bay Cement, Portland, Whangarei Client: Golden Bay Cement. Our Work: Reyburn and Bryant conducts regular topographical surveys using a DJI Unmanned Aerial Vehicle (UAV). The use of an UAV for surveying sites that involve difficult terrain make for a cost effective and efficient solution for the client. Far North Flood Risk Reduction Program – Kaitaia and Kaeo Marsden Maritime Holdings Haul out, Hardstand and Headquarters, Marsden Point, Whangarei Print