ArcGIS Living Atlas of the World provides foundation elevation layers and tools to support analysis and visualization across the ArcGIS system. These layers get updated quarterly with high resolution elevation data from federal agencies, open sources, and community maps program. Esri is providing these datasets as ready to use services that benefit the GIS community and extend the use of data in new and innovative ways.
San Francisco Bay 2m bathymetry
Recent high resolution updates are detailed in High resolution data updates to Living Atlas World Elevation layers by @RajinderNagi