Ocean Science exhibition

The Ocean Science Multimedia Exhibition of the German Ocean Foundation on the Cap San Diego in Hamburg offers a place of learning for all pupils from the 5th grade onwards who are interested in the UN Ocean Decade and the challenges facing our oceans today.

The exhibition was one of the first public events of the UN Decade of Ocean Science for Sustainable Development in Germany and is supported by more than 75 partners and stakeholders. The Ocean Decade is a unique opportunity for ocean stakeholders from around the world to come together to share knowledge and foster partnerships needed to support a well-functioning, productive, resilient, sustainable and inspiring ocean. The exhibition aims to visibly support the goals of the Decade. The exhibition serves as a learning space for all Hamburg schools, as the combination of multimedia installation, the exhibits and the possibility of discussions on stage makes for an attractive extracurricular program.

In addition to the two world premieres: the microplastic collector, a project funded by the German Federal Ministry for Economic Affairs and Climate, and the first research diver-guided underwater satellite, the exhibition features an Argo Float, one of the 3,000 state-of-the-art measuring buoys currently deployed on the ocean, and an active algae reactor from the University of Hamburg as a symbol of the extraction of future food and energy from the ocean. Also on display is one of the first automatic measuring stations for ships, the OceanPack™ from the Kiel-based company SubCtech, which is also used by the professional sailor Boris Herrmann from Hamburg on board his IMOCA racing yacht Malizia Seaexplorer. An historic Swedish sea mine and art made from ghost nets by the Hamburg start-up Bracenet, together with a current documentary on the salvage of munitions in the Baltic Sea, bring the topic of marine litter to life. A touch table from the German Ocean Foundation provides visitors with information on the Ocean Decade and allows them to watch films of the research at sea competition winners on board the research vessel ALDEBARAN, from which a historical weather station is also on display.

The Cap San Diego, the world's largest seaworthy museum cargo ship now moored at the Überseebrücke in Hamburg, has been a maritime monument and floating hotel since 2003. The exhibition is set up in the freighter's former oil tank and hold and consists of a multimedia show on five large video screens and selected exhibits. The Ocean Science multimedia exhibition will be on display for the entire duration of the Ocean Decade.

This exhibition is powered by solar energy to protect our ocean - with the support of a photovoltaic system installed by Meyer Burger on the deck of the Cap San Diego - making it the first exhibition in Hamburg to rely solely on self-generated solar power.

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Discover the exhibits:

Underwater satellite

Planblue has developed the first underwater satellite that can automatically scan the seabed in great detail. In the future, it will be possible to show how much CO2 is fixed on the seabed (the seabed can fix CO2 20 times more efficiently than on land), how healthy (e.g. pollution, climate change, diseases) and how species-rich (e.g. loss of species, visualization of the success of environmental measures) the seabed is.
Floating solar power plant

HelioRec has developed a floating solar power plant that transforms unused water surfaces into a home for clean energy generation and can withstand both waves and wind.
Argo Float

Since 2000, thousands of autonomous marine robots have been deployed as part of the Argo program to measure temperature and salinity profiles. The buoys drift freely with the ocean currents at a depth of 1,000 m and regularly rise to the surface to transmit measurement data and their position.
photo: Argo Program
Sea mine

There are over a million tons of old munitions in the German North Sea and Baltic Sea, which corrode in salt water and release their toxic substances into the environment. The need for systematic salvage of sea mines, such as this anchor mine from Sweden, was recognized and a pilot project to remove the munitions in the Bay of Lübeck was launched in 2024.
Ghost nets

Bracenet lovingly upcycles old fishing nets by hand in Hamburg and Porto to create many new products. Together with the marine conservation organizations Healthy Seas and Ghost Diving, 250 divers free reefs and shipwrecks from lost or intentionally sunk fishing nets at depths of over 50 meters. They have now recovered over 773 tons.
Ocean laboratory

OceanPack™ is a mobile automated laboratory for ships developed by SubCTech. It can perform unattended climate measurements in the water for science.
It has integrable sensors for CO2, salinity, temperature, algae species and pH. The data is used as a weather station and for ocean current models as well as for calculating global energy transport. The technology is now so advanced that racing yachts such as Boris Herrmann's Malizia have a miniaturized device on board.
Algae reactor

At the University of Hamburg , Professor Dr. Hanelt's research group, which has been working on the ecophysiology of aquatic plants, is developing an algae photobioreactor for the production of algae biomass.
A ship that cleans the ocean

The SeaCleaners Manta, an ocean-going catamaran that will clean the oceans from 2026 and join the organization's fleet of cleaning vessels, such as the Mobula 8, which collects waste from shallow and inaccessible waters such as mangroves, rivers, canals and port areas.
Microplastic measuring device

The first and so far probably only automatic microplastic sampler with ultrasonic pre-filter developed by a consortium of the companies 4H Jena and Nägele Mechanik in 2018 with funds from the Central Innovation Program for SMEs of the Federal Ministry of Economics. To identify plastic particles in bodies of water, a PlaMoWa consortium is developing a new type of filter unit (filter cascade) that enables efficient pre-sorting of microplastic particles during sampling in bodies of water.
Historical weather station

Historical weather station from the Norwegian company Aandera used on board the sailing research vessel ALDEBARAN from 1992-2005. The ALDEBARAN is on tour in shallow water and coastal areas, but also in inland waters and rivers. Today, the station has been replaced by an official weather station of the German Weather Service.
German Ocean Foundation

Interactive touch table of the foundation with all expedition films of the federal competition "Research at Sea" and information about the work of the German Ocean Foundation.
Plastic pollution

Plastic is everywhere, in our bodies, in the sea, in the environment, it is even used by seabirds to build nests, as shown by this gannet building a nest from plastic parts, provided by the Aquazoo Löbbecke Museum.