A "river estuary" refers to a place where a river meets the sea or ocean. It is the area where fresh river water mixes with salty ocean water. Full definition
The Hudson River Valley Greenway and the Hudson River Estuary Program help communities revitalize downtowns — spurring new businesses and jobs, while conserving open space and farms growing healthy produce. (scenichudson.org)
So we are going to be looking for champions on the legislature to help us see that money for the Hudson River Estuary Program increase even more than the governor has proposed.» (wamc.org)
Located along the Douro river estuary in Northern Portugal, Porto boats one of the oldest European centres, and its historical core was proclaimed a World Heritage site by UNESCO in 1996. (galloparoundtheglobe.com)