There is also the possibility of Geophysics or Earth Science as an alternative to Geology.
FYI -
http://www.ocean.udel.edu/
http://www.ocean.udel.edu/extreme2002/resources/Index.html
See this - Introduction to Physical Oceanography (downloadable)
http://oceanworld.tamu.edu/resources/ocng_textbook/contents.html
http://www.ncl.ac.uk/marine/
The School of Marine Science and Technology is the largest and broadest-based marine school in the UK, covering the fields of marine engineering, marine biology, naval architecture, offshore engineering, coastal management and small craft technology, and enjoys a substantial international reputation.
School of Oceanography, University of Washington
http://www.ocean.washington.edu/2004/research/programs.html
The School of Oceanography at the University of Washington is a national leader in oceanographic research and education of graduate and undergraduate students. With its roots in the UW Oceanographic Laboratories founded in 1930 and directed by Professor Thomas G. Thompson, the School was organized formally in 1951. The faculty numbers 60. An additional 20 adjunct and affiliate faculty, mainly drawn from the UW Applied Physics Laboratory and NOAA's Pacific Marine Environmental Laboratory, are also active in graduate advising.
http://sio.ucsd.edu/
Scripps Institution of Oceanography is one of the oldest, largest, and most important centers for marine science research, graduate training, and public service in the world.
Scripps Institution was founded in 1903 as an independent biological research laboratory, which became part of the University of California in 1912. At that time the laboratory was given the Scripps name in recognition of supporters Ellen Browning Scripps and E. W. Scripps.
Scripps staff numbers approximately 1,300, including about 90 faculty, nearly 300 other scientists, and some 200 graduate students. The institution's annual expenditures total more than $140 million.
Graduate School of Oceanography, University of Rhode Island
http://www.gso.uri.edu/support/index.html
Department of Oceanography -
http://www.soest.hawaii.edu/oceanography/
at the University of Hawai`i at Manoa
The Skidaway Institute of Oceanography (Univ. of Georgia) - http://www.skio.peachnet.edu/
The Skidaway Institute of Oceanography (SkIO) is an autonomous research unit of the University System of Georgia. The mission of the Institute is to provide the State of Georgia with a nationally and internationally recognized center of excellence in marine science.
http://www.skio.peachnet.edu/Skioresearch/researchareas/
UEA Meteorology, Oceanography and Climate Dynamics
http://envam1.env.uea.ac.uk/met_ocean_climate.html
National Oceanography Centre, Southampton
http://www.noc.soton.ac.uk/
See also - ICES Journal of Marine Science: Journal du Conseil
http://icesjms.oxfordjournals.org/
ICES/CIEM International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer
http://www.ices.dk/indexnofla.asp