Video Gallery Test [aiovg_videos show_category=”0″ show_tag=”0″ show_views=”0″ show_duration=”0″ show_excerpt=”1″ show_pagination=”0″] Lighthouse Preservation: A Case Study in Reality Modeling Combining multiple survey methodologies, Aqua Survey is able to create engineering-grade 3D point cloud models that seamlessly transition between above and below water. This was a crucial support tool to the engineers assessing the structural integrity of the historic Hudson-Athens Lighthouse in Hudson, New York.