Short answer: the North Sea and English Channel link Scandinavia and the Baltic with the Atlantic and the Mediterranean, and they are among the busiest and most tidal waters in the world. Plan the passage around the tides (they decide your speed over the ground and the sea state), cross the traffic separation schemes at right angles, keep a listening watch on the VTS channels, avoid wind against tide at headlands and races such as the Alderney Race, and choose a weather window with moderate winds — the short, steep North Sea waves punish a boat in a strong blow.
For a yacht delivery from Denmark, Norway, Sweden or Germany to the Mediterranean — or the other way — the stretch from the Elbe or Skagen to Ushant at the tip of Brittany is usually the most demanding part of the route before the Bay of Biscay. This guide explains what makes it tricky and how our delivery captains plan it.
The route at a glance
| Leg | Typical route | Approx. distance | Key challenge |
|---|---|---|---|
| 1 | Kiel Canal → Brunsbüttel → Elbe → Cuxhaven | ~15 nm on the Elbe | Strong tidal stream and heavy shipping on the Elbe |
| 2 | Cuxhaven → Dutch or Belgian coast → Dover Strait | ~300–350 nm | Shallow North Sea, wind farms, short steep seas |
| Alternative | Skagen → southern North Sea (west of Denmark) | ~350–400 nm to the Dutch coast | Open North Sea with few harbours of refuge in strong westerlies |
| 3 | Dover Strait → English Channel → Ushant / Brest | ~300 nm | Tides, traffic separation schemes, headland races |
Distances are rough and depend on the exact ports and routing. From Brest, most deliveries continue across the Bay of Biscay.
Tides: the most important planning factor
The Channel works like a funnel. The tidal range grows from less than a metre in some eastern areas to more than 6 metres around the Channel Islands, the west coast of the Cotentin peninsula and northern Brittany at spring tides. High water at the eastern and western ends of the Channel is roughly six hours apart.
- Stream timing: a yacht making 6 knots through the water can make 8–9 knots over the ground with a fair tide — or barely 3 knots against it. Leaving an hour too late can cost a whole tide.
- Tidal gates: headlands such as Portland Bill, the Alderney Race and the Raz de Sein should be passed at the right state of tide, ideally near slack water or with a fair stream and light wind.
- The Alderney Race: between Alderney and Cap de la Hague the stream can reach around 12 knots during big equinoctial tides. With wind against tide, breaking waves of up to 4 metres are possible.
- Wind against tide: even a moderate breeze blowing against a strong stream creates short, breaking seas. Plan the passage so that the strongest streams run with the wind.
Shipping and the Dover Strait
The Dover Strait is just over 18 nautical miles (33 km) wide at its narrowest and is used by more than 400 commercial ships every day, plus cross-channel ferries and high-speed craft. A traffic separation scheme (TSS) separates the north-east and south-west traffic lanes, with inshore traffic zones along the English and French coasts.
- Cross at right angles. Under COLREG Rule 10, a vessel crossing a TSS must keep a heading as nearly as practicable at right angles to the traffic flow — regardless of the tidal set.
- Do not impede. Sailing vessels and boats under 20 metres must not impede ships following a traffic lane.
- Listen in. The Channel Navigation Information Service (CNIS) monitors the Strait from Dover and Gris-Nez by radar and AIS and broadcasts weather and navigational information. Keep a listening watch: Dover Coastguard on VHF 11 and Gris-Nez Traffic on VHF 13.
- Be seen. An AIS transponder, a good radar reflector and correct navigation lights make a big difference at night and in poor visibility.
Rule-breaking is taken seriously: vessels are tracked, and yachts have been fined for sailing the wrong way in a traffic lane.
North Sea conditions
- Shallow water: the southern North Sea is shallow, so waves build quickly and become short and steep in a strong wind — uncomfortable and tiring for the crew.
- Offshore wind farms: large wind farms now cover much of the Dutch, Belgian, German and British sectors. Rules differ by country and farm: some are open to small craft, others are closed or restricted. Check the current charts and notices before the passage.
- Few harbours of refuge: many harbours on the Dutch, German and Danish coasts have shallow, exposed entrances that become dangerous in strong onshore winds.
- Fishing and oil and gas installations: keep a sharp lookout, especially at night.
- Season: May to September usually offers the best windows. Autumn and winter bring frequent gales.
The Dutch Standing Mast Route — not in 2026
Sailing yachts can normally travel through the Netherlands on inland waters via the Staandemastroute (Standing Mast Route) with the mast up, avoiding part of the North Sea. In 2026 large parts of the route are closed because of bridge failures and works, and tall-masted boats are advised to go round by sea instead. Check the current status before planning, as conditions change.
Weather windows and planning
- Compare at least two forecast models and follow the official shipping forecasts for the sea areas on the route.
- Plan the departure from the tide tables first, then check that the wind fits — not the other way round.
- Pick waiting ports in advance: Cuxhaven, IJmuiden, Ostend, Dover, Cherbourg and Brest are common choices on a delivery.
- Expect rapid changes: a North Sea front can turn a calm into a near gale in a few hours.
Preparing the yacht
- AIS transponder and radar working; navigation lights checked
- Electronic charts updated, plus paper charts or a tidal atlas as back-up
- Jacklines, harnesses and life jackets with lights for night watches
- Fuel for motoring through calms and against foul tide
- Engine serviced — a failure in a traffic lane is serious
See our full yacht delivery preparation checklist.
How we plan the North Sea and Channel on a delivery
Our captains and officers come from the commercial fleet, where TSS rules, VTS reporting and passage planning around tides are everyday work. On the Scandinavia to Mediterranean route we plan each leg from the tides and the weather, choose waiting ports in advance and keep the owner updated at agreed intervals. See our delivery packages or request a free quote.
Related guides
- Kiel Canal yacht guide
- Crossing the Bay of Biscay
- Scandinavia to Mediterranean yacht delivery
- Yacht delivery from the Netherlands
Frequently asked questions
How wide is the Dover Strait?
At its narrowest, between South Foreland and Cap Gris-Nez, the Dover Strait is about 33 km or just over 18 nautical miles wide. More than 400 commercial ships pass through it every day.
How should a yacht cross a traffic separation scheme?
On a heading as nearly as practicable at right angles to the direction of traffic flow, as required by COLREG Rule 10, and without impeding ships following the traffic lane.
Which VHF channels should I monitor in the Dover Strait?
Keep a listening watch on Dover Coastguard on VHF 11 and Gris-Nez Traffic on VHF 13. They run the Channel Navigation Information Service and broadcast weather and navigational information.
Can I take the Dutch Standing Mast Route in 2026?
Large parts of the Staandemastroute are closed in 2026 because of bridge problems and works, and tall-masted yachts are advised to go via the North Sea. Check the current status before planning.