
Explore by sea.
Tell us where you leave from and on what boat. Seavilo hands you a whole day at sea: the stops, the return time, the fuel, the cost — and a warning when the sea turns.
See how it worksThe problem
A day at sea is badly prepared.
Marine forecasts live on one site, coves on another, fuel burn in the back of your head. You cross-check by hand, pick a route, and the wind picks up at 3 pm. Then everything has to be redone, at the worst possible moment.
Today
With Seavilo
Three sources, no answer
Forecasts, charts and good moorings never talk to each other. The cross-checking is on you.
One answer, where the marine forecast, the coastline and the moorings have already been crossed.
Numbers you guess
Return time, fuel, cost of the day: rarely worked out before leaving, often regretted after.
Distance, return time, litres, euros and remaining reserve, worked out before you cast off.
A plan that cannot move
When the sea shifts, a route written the night before never says what to drop first.
A sheltered variant arrives with its cause and its cost. You decide whether to take it.

How it works
A few minutes for a whole day.
You describe the outing, Seavilo puts numbers on it and holds it against that day’s sea. Every trade-off stays yours.
You describe the day
The port you leave from, the time window, the boat and its fuel burn, then what you feel like: a swim, lunch at a quay, little running time. Nothing else to fill in.
Seavilo drafts and compares
Several possible days, each with numbers: distance, running time, return time, fuel, estimated cost and remaining reserve. Compare them, move a stop, the numbers follow.
The forecast is read along your route
Not a city forecast: wind, gusts, waves, swell and visibility at the coordinates of your stops, at the hours you will pass them. If it turns, a sheltered variant is offered with its cause and its impact. It is never applied for you.

At sea
The phone takes over.
The prepared day moves to mobile by link or QR code. On board, the screen only shows what is being decided right now.
- The next leg
- Time and distance left, estimated arrival, informative distance to the coast, fuel and cost so far.
- Told when the sea turns
- The forecast keeps being watched while you are out. If it drops suddenly, the alert reaches you on board: what changes, at what time, on which stretch, and the sheltered option. The last update time stays on screen.
- Without a signal
- A map pack limited to the corridor of your route, and the last useful forecasts, stay readable offline.
- Without wearing you out
- 48 px targets and full-sun contrast. Locked-screen tracking only runs if you ask for it.


Who it is for
For people who go to sea without doing it for a living.
You charter for the week
The boat is new to you, so is the coast. You want a day that holds together, not a navigation course.
You know your boat, not this coast
You are after the right moorings and a realistic route before you cast off.
You are the one organising
You plan for everyone else, and you want to announce a return time without lying.
At launch
Freeto plan your days
No card required
Seavilo is free. The service may earn a commission when you use selected affiliate links, with no surcharge announced by Seavilo.
- Seavilo does not take payment or manage bookings and cancellations.
- Every paid link says “Affiliate link”; every paid placement says “Sponsored”.
- A commercial relationship never changes route calculation, forecasts or safety alerts.
Said plainly
Seavilo does not navigate for you.
It is a planning assistant, not a certified navigation system.
- It replaces neither official nautical charts, nor notices to mariners, nor mandatory equipment.
- The decision stays with the skipper, before and during the outing.
- Every forecast shows its source and its update time. Nothing is presented as certain.
- Photographs of places are illustrations, never the actual state of the sea that day.

Where it works
European coasts, shown honestly.
The discovery catalogue covers Western Europe. Automatic planning opens basin by basin, only where marine routing and safety data are available.
- places and routes by basinEuropean Mediterranean
- places to discoverFrench Atlantic, Brittany and Normandy
- places to discoverSpain and Portugal
- places to discoverCanaries, Madeira and Azores
Every port clearly says “Route available” or “Places to discover”. Planning opens only after its data has been reviewed.
FAQ
What people ask us.
What is Seavilo?
Seavilo is a planning assistant for days at sea. From a departure port, a time window, a boat and that day’s marine forecast, Seavilo drafts several costed itineraries, then hands the chosen one to the phone for navigation.
How much does Seavilo cost?
Seavilo is free at launch and asks for no payment card. Selected affiliate links may earn Seavilo a commission; they are labelled and every booking is completed directly on the partner’s website.
Where does Seavilo work?
Ports and places are discoverable across the Mediterranean and the coasts of Western Europe, from Brittany to the Algarve and the Atlantic islands. Route planning appears only in basins that are actually routable.
Does Seavilo replace a nautical chart?
No. Seavilo is a planning assistant, not a certified navigation system: it replaces neither official nautical charts, nor notices to mariners, nor mandatory equipment, nor the skipper’s decision.
Do you need a signal at sea to use Seavilo?
No. Seavilo downloads a map pack limited to the corridor of the route and keeps the last useful forecasts, which stay readable offline for the whole outing.
What happens if the weather turns during the outing?
Seavilo keeps watching the marine forecast during the day. If it worsens, an alert reaches the boat with its cause, its time, the stretch of route affected and a sheltered variant, which the skipper accepts or refuses.
Do you need to be an experienced sailor to use Seavilo?
No. Seavilo is built for people who charter a boat for the week, owners discovering a new coast, and whoever organises the day for a group.
When will Seavilo be available?
Seavilo is not open to the public yet. The waitlist on seavilo.com sends one single email on launch day.
Seavilo is coming.
Leave your email: one single message will go out, the day the first day at sea is ready.


