Inland Waters: inland water features, drainage systems, and their characteristics. For example, resources describing rivers and glaciers, salt lakes, water use plans, dams, currents, floods, water quality, and hydrographic charts. WMS: https://gisapps.nsdi.gov.lk/server/services/SLNSDI/Inland_Waters/MapServer/WMSServer?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities