Australia's National Tidal Facility is a "fully self-supporting agency within The Flinders University of South Australia specializing in tidal predictions, sea level monitoring and contemporary marine science issues." Their Data Inventories page contains links to products including Australian Baseline Array Sea Level and Meteorological Data, South Pacific Sea Level and Climate Monitoring Project Sea Level and Meteorological Data, the Southern Ocean Sea Level Centre Database, and more. Although free registration is required to access some of the datasets, users should find the provided resources worth any inconvenience. As a side note, don't miss the very cool interactive water ripple that follows your cursor on the home page of the site.