ALTAIR NAUTICA
Scientific Expedition in the Mediterranean

Scientific Expedition in the Mediterranean

State-of-the-art electronics platform for professional marine research. Up to 5 researchers + skipper.

A boat built for science. A skipper with 20 years on the Mediterranean.

The Mediterranean is one of the most complex and threatened marine ecosystems on the planet — and one of the least sampled beyond standard coastal routes. Our sailing vessel BELA, a Finnsailer 34, is prepared to carry research teams to hard-to-reach areas: submarine canyons, posidonia meadows, bird migration corridors and cetacean routes.

This is not a tourist boat repurposed for science. It is a working platform at sea, with professional electronics, deck space optimised for sampling equipment, and a skipper who knows the currents, seabeds and meteorology of the Catalan coast and western Mediterranean in depth.

Maximum 5 researchers + skipper. Small group to guarantee real working space on board and minimal ecosystem disturbance.

Who is this service for?

  • Universities and research centres
  • Marine conservation NGOs and organisations
  • Documentary production companies and nature photographers
  • Oceanographic institutes and marine laboratories
  • Ornithology and bird ringing groups
  • Citizen science and environmental monitoring projects

BELA — Finnsailer 34

Classic 10-metre sailing vessel. Robust, comfortable and ready for any Mediterranean condition.

BELA sailing vessel underway in the Mediterranean
Stern of sailing vessel BELA
BELA departing from Port Garraf, Sitges
Below-deck working space on board BELA
Professional nautical electronics on board
Ricard Prehn, skipper and director of Escuela Náutica Altair

Research areas

The boat adapts to the project, not the other way around. These are the research lines we are equipped and ready for.

Microplastics & pollution

Surface sampling with manta trawl net, water sample collection at different depths and floating debris documentation. Protocol adaptable to MSFD standards.

Marine biology & fauna

Sighting, identification and recording of cetaceans, sea turtles, pelagic fish and megafauna. HD underwater camera for non-invasive visual documentation.

Bathymetry & submarine geology

Seabed mapping with high-resolution bathymetric sonar. Identification of posidonia meadows, submarine canyons and geological structures of scientific interest.

Marine flora & ecosystems

Visual inspection and sampling of posidonia oceanica meadows, invasive algae and seabed condition in study areas. Snorkel and underwater camera included.

Marine ornithology

Seabird census at sea and in feeding zones. The Garraf coastline is one of the most active migration corridors in the western Mediterranean.

Oceanography & physical parameters

Sea surface temperature, salinity, water transparency and meteorological conditions recorded throughout the expedition. GPS-referenced data logging.

State-of-the-art electronics

BELA is not just a sailing vessel. It is an observation and sampling platform equipped to work in real open-sea conditions, with the technology needed to produce scientifically valid data.

Multifunction chartplotter with detailed bathymetric charts of the Mediterranean

Class B AIS and marine VHF with DSC — professional communications at all times

High-precision GPS with track logging and georeferenced waypoints

High-resolution bathymetric sonar for seabed mapping

On-board weather station: wind, pressure, temperature and humidity in real time

Marine radar for low-visibility navigation and obstacle detection

HD underwater camera with recording for fauna and flora documentation

Autopilot to free hands during underway sampling operations

Sampling equipment

  • Manta trawl net for surface microplastics sampling
  • Snorkel and freediving equipment
  • On-board fridge for sample preservation
  • Working space on deck and below
  • 12V and 220V power outlets for instrumentation
  • Digital logbook with position recording

Navigation capability

  • Range for multi-day expeditions
  • Ready to sail the entire western Mediterranean
  • Home port: Port Garraf (Sitges, Barcelona)
  • Skipper with 20+ years on the Mediterranean
  • Berths available for multi-day expeditions

The skipper does more than sail the boat

Ricard Prehn has been sailing these waters for over 20 years. He knows the Garraf submarine canyons, the seasonal currents of the western Mediterranean, cetacean concentration points and bird migration routes. That local knowledge is part of the service.

During the expedition, Ricard actively collaborates with the research team: locating areas of interest, adjusting speed and heading according to project objectives, and sharing his reading of the sea. He is not a nautical taxi driver — he is a field collaborator with decades of direct observation experience.

The entire Mediterranean as your workspace

BELA can reach any point in the western Mediterranean according to your project needs.

Catalan Coast

Home base. Garraf, Ebro Delta, Cap de Creus.

Balearic Islands

Ibiza, Formentera, Mallorca, Menorca.

Spanish Levante

Valencia, Alicante, Murcia, Cabo de Gata.

NW Mediterranean

Côte d'Azur, Corsica, Sardinia, Ligurian Sea.

Do you have a research project?

Every expedition is different. Tell us your project objective, the study area, estimated duration and number of researchers. We will prepare a proposal tailored to your needs and budget.

What to include in your enquiry

  • Scientific objective and study area
  • Estimated duration (days / sessions)
  • Number of researchers (max. 5)
  • Equipment you will bring on board
  • Approximate dates