CCI THREDDS Data Server Catalog https://data.cci.ceda.ac.uk/thredds/catalog/esacci/sea_state/data/v3_release/altimeter/catalog.html

Dataset Size Last Modified
     Folder  altimeter   --
         Folder  l4/   --
         Folder  l3/   --
         Folder  l2p/   --

CCI THREDDS Data Server at CEDA see Info
Documentation