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Friday is Breathtaking

Responsible Fun

Friday brings together a wide range of design, engineering, certification and marketing competencies focused on creating technologically advanced nautical and water related leisure devices and equipment.

Friday's solutions favour the principles of modularity, personalised client relationships, energy efficiency and environmental sustainability.

Dedicated to serving the leisure and free time market with high professional standards, Friday fosters a youthful, responsible yet carefree corporate culture, consistent with the weekend spirit that inspired the brand name.

In Touch With Nature

Life and Leisure

A romantic gateway for two or a mobile house in the middle of a lake for the entire family or a group of friends. Whether you choose to use the floating home as a base camp for numerous outdoor activities such as sailing, paddling, water skiing or fishing, or simply to relax, you’re guaranteed a great living experience.

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General Characteristics
Plan your Floating House Download Datasheets and Technical Notes

With a fixed width of 6 metres and lengths ranging from 10 to 18 metres, the possibilities are almost endless. Whether you want a cosy studio or a fully furnished three-bedroom house, the freedom of nature is on your doorstep.


With a fully equipped kitchen for everyday use, heat pump and AC generator, a barbecue on the upper terrace for sunny days and a wine cellar and pellet stove to keep you warm on cold days, you will find the comfort of your home.


It has been designed with low environmentally impactful materials and technologies that reduce its carbon footprint and lower its energy needs. It has a compact activated sludge wastewater treatment plant.


The modular design of the house means that all its components, including equipment and furniture, can be easily stored in two standard containers and shipped to almost anywhere on the planet.


With two small outboard motors, you can take your time to enjoy your trip at a moderate speed of 3 knots and wake up in a different place every day.


When charged, the house is self-sufficient for at least seven days. It produces up to 80% of its annual energy needs (100% for over six months).

Go Deeper, Go Friday

A unique experience

The mysteries of the underwater world captivate our imagination, even for those of us who’ve never explored it in person. Observing marine life and the seabed satisfies our innate curiosity. Film and television documentaries convey powerful images and information. Unmanned devices now carry all manner of date loggers, sensors and cameras, enabling us to explore ever further and deeper. Yet nothing beats the sensation and unique experience you get from coming into direct contact with underwater life in all its glory.

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General Characteristics
Download Full Datasheet
A shareable experience

Available in a 2-person version (a 3-person version will follow) for a shared journey into the depths of the underwater world.

Secure and comfortable access

With a very comfortable freeboard, by far the largest of its class, getting in and out is easy and safe.

Easy navigation and control

With a resident system that automates the most tedious navigation tasks and saves energy*, being captain aboard has never been easier.
* Patent pending

Safety comes first

All critical systems have automated backups in place. A number of safety features come as standard and DNV-GL certification is, of course, mandatory. You can dive safely to depths of 300 metres (about 1,000 feet).

Compact and lightweight

Compact yet robust and comfortable, this is the lightest submarine of its class. Measuring just 2.5 metres in length, 2.36 metres in width and 1.84 metres in height, it can be shipped in a standard container and easily stored in a regular yacht garage.

High technology design

Supported by prestigious research institutions such as IMAR, ITeCons, IPN-Las, IT and INESC-Tec, its design incorporates the latest available technologies as standard.

The team

Friday is a spin-off of the University of Coimbra, launched by a team with over 30 years of experience in research and development in the fields of Structural, Electrical, Hydraulic, Marine, Coastal and Mechanical Engineering.

More recently, the team has grown and now includes competencies in fields such as Architecture and Industrial Design. Currently over 20 Phd and MSc qualified researchers, among others skilled engineers, work in the development and production teams.

Portugal Ventures, the leading venture capital fund in Portugal, elected Friday as one of their key investments and is present in the Board of Administration.

Fernando Seabra Santos picture
Fernando Seabra Santos, PhD

Head of the project
Full Professor, Senior Consultant

Fernando Sena picture
Fernando Sena

Key Advisor, expertise in Naval Architecture

Jorge Miranda Dias picture
Jorge Miranda Dias, PhD

Head of Navigation & Control Design Team
Associate Professor, Senior Consultant

Sérgio Cruz picture
Sérgio Cruz, PhD

Head of Electrical Design Team
Auxiliary Professor, Senior Consultant

Fernando Gamboa picture
Fernando Gamboa, MSc

Head of Naval Architectural Design Team

Nuno Teixeira picture
Nuno Teixeira, MSc

Head of Industrial Design Team