Look-ahead navigation that travels with you

Set off. Get warned in time.

There is no route to plan and no need to keep watching the map. Rivers & Seas can check the waterway in the background and alert you before you reach a closed lock or a bridge that will not fit—or meet a large vessel coming the other way.

Locked iPhone showing a Rivers & Seas alert about a low bridge and closed lock ahead.

Set off instead of planning ahead

The waterway reorders itself as you cruise.

Your position, direction, and speed are enough. The view keeps updating and brings forward what you will reach next. When you follow a visible Track, Rivers & Seas recognises it automatically and aligns bridges, locks, and notices with its course, with no navigation start button required. Without a suitable Track, the look-ahead follows the detected waterway. After a lock, arrival at every later place includes its stored duration, or 30 minutes when none is available.

Bridges

Photo, dimensions, and water-level- or tide-dependent clearance at your estimated arrival.

Locks

Operating time, closure, VHF, telephone details, and the duration included in later arrivals.

Vessel traffic

Commercial vessels, ferries, and oncoming traffic in the context of the waterway.

The map is closed

Rivers & Seas can still look up to 20 kilometres ahead.

The map does not need to be open. On an iPhone or iPad with its own location capability, suitable location changes can trigger another check. When Rivers & Seas finds something important, a notification can show the key fact, distance, and estimated time to arrival.

The route ahead is closed

Closures, restrictions, and known opening hours can warn you when a facility will be unavailable at your arrival.

The bridge will not fit

Where the required dimensions are known, insufficient height or width can appear directly on the Lock Screen of an iPhone or iPad.

Large vessel approaching

Available recent AIS traffic can draw your attention to a large vessel or crossing ferry ahead.

Catch the same lockage

When the analysis finds a suitable shared arrival, Rivers & Seas can show the speed needed to reach the lock together.

Allow it once, then let it work automatically

Allow notifications and set location access for Rivers & Seas to Always. The feature can then work in the background on iPhone and iPad with their own location capability. iOS and iPadOS decide when to trigger a check, so there is no guaranteed time or distance interval. Wi-Fi-only iPads without their own location capability are not supported.

Arrival, not static data

Warnings that fit your boat and your timing.

Rivers & Seas combines boat dimensions, current speed, gauge levels and tides, opening times, and available navigation notices. Many separate facts become one clear answer: Will the bridge fit when you arrive, will the lock be open, and what traffic lies ahead?

Rivers & Seas warning about insufficient bridge clearance at arrival.

Bridge clearance at arrival

On gauge-dependent inland waterways and at the coast, the expected clearance when you reach the bridge matters—not a static chart value.

Rivers & Seas warning about a lock closed at arrival.

Lock closed at arrival

Operating times, closures, and notices relate to your arrival instead of sitting in a separate list beside the map.

Rivers & Seas showing AIS traffic on the waterway ahead.

Oncoming traffic and ferries ahead

A large vessel around the bend or a crossing ferry appears early as part of the situation on your waterway.

Notices without searching authority portals

ELWIS and EuRIS information becomes part of the trip automatically.

Rivers & Seas processes available notices to skippers, connects them to the waterway, and turns them into plain-language information or warnings. Closures, restrictions, and changed operating times appear where they matter for the journey.

Spend less time waiting at locks

A commercial vessel ahead could take you through the same lockage.

Rivers & Seas automatically compares when you and the commercial vessel will reach the next lock. Alongside VHF and telephone details, you see the speed needed to arrive with that vessel.

Compact view showing the commercial vessel and speed for a shared lockage.
Vessel, lock, and matching speed at a glance.
Expanded Waterway Ahead view showing the commercial vessel and lock.
The full Waterway Ahead view explains the shared arrival in context.
More about reaching the lock together

Know the structure before you arrive

Photo, dimensions, and contact details in one clear view.

Bridge photos and dimensions make structures easier to recognize. For locks, available operating times, VHF, telephone, usable length, width, and draft appear together. There is no need to assemble critical details just before arrival.

Large bridge detail view with photo and clearance dimensions.
A bridge with its photo and available dimensions.
Lock detail view with photo, VHF, and telephone number.
A lock with contact and operating details.

For inland and coastal cruising

Particularly strong on German and European waterways.

The boating map works worldwide. Rivers & Seas is especially detailed on German and European inland waterways, with gauge-dependent bridge clearances including Berlin-Brandenburg's Spree, Havel, and canals, as well as the Danube and Elbe. Tides and coastal charts make it useful on the way to sea as well.

Open the practical guide

It all belongs together

Pay once. No subscription.

The public beta is free. The finished app is planned at one fixed purchase price for every feature and cruising area.

Experience Waterway Ahead

Set off without building a route first.

Install the public beta, or try the browser map with real AIS targets first.