A Sea Ring resort with yachts docked at the floating marina
Phase 1 · Go to market

Thirteen Sea Rings from Marseille to Genoa.

Boutique resorts anchored outside the Riviera's best marinas. Each ring refuels hydrogen yachts, serves fish from its own cage, and hosts a restaurant and beach club. Tourism pays first.

The first customer

Tourism pays first.

A unique stay at sea, minutes from any coastal city. The deck the plant needs anyway becomes the suites and the beach club.

13Sea Rings
9suites per ring
70beach-club seats
10 minfrom the city
Aerial view of a Sea Ring
The Riviera route

One ring every nine months, Marseille to Genoa.

FRANCE · ITALY MEDITERRANEAN SEA MARSEILLECASSISTOULONHYÈRESLE LAVANDOUSAINT-TROPEZFRÉJUSCANNESNICECAP FERRATMONACOSANREMOGENOA
13 Sea Rings · one every 9 monthsHydrogen yacht routeSwipe the map →
On deck

For the guest, the captain and the chef.

Nine suites, open sea view

Island exclusivity, ten minutes from the city. No ferry, no flight.

Fish from the ring

A restaurant fed by the cage. A 70-seat beach club. Pizza delivered to yachts by zodiac.

A rally point for boats

Open access. Yachts refuel while their owners stay for dinner.

Self-powered

Its own hydrogen, its own fresh water, its own tender fuel.

The design

Suites side. Utilities side. Yacht access.

By AUB Architects.

Sea Ring plan: suites side, utilities side and yacht access

Plan: nine suites, private decks, utilities, yacht pier.

Sea Ring structure with the submerged truss

Structure: deck ring above, truss and fish cage below.

Unit economics

One ring, in plain numbers.

From the feasibility study. Costs stay a fixed share of revenue as the chain grows.

Full investment case
$5.96Mbuild cost per ringturn-key, net of VAT
$2.55Mrevenue per ring per yearresort, refuelling, fish
$461Koperating cost per year18% of revenue
82%gross marginholds as the fleet grows
Beyond the Riviera

The same ring. Four markets.

Green coastal tourism
Phase 1 · first customer

Green coastal tourism

Refuel yachts at sea inside a boutique resort, ten minutes from the city.

Green ports and bunkering
Phase 2

Green ports and bunkering

Clean power and green fuels for ships waiting outside ports.

Green data centres
Phase 2

Green data centres

Submerged AI data centres, cooled by the sea, powered by the ring.

Energy and fish farms
Any phase

Energy and fish farms

Rings joined into a farm. More hydrogen, more fish, one structure.

Open for funding

Thirteen rings. The first one needs a partner.

€6–7M builds the first Sea Ring in nine months.