Passage Plan Effectively : More Tools for your Offshore Toolkit
Part: 2 of 4 - (12 months out to 6 months out)
Effective offshore passage planning starts well before you leave the anchorage. A passage plan needs to account for weather, sea conditions, distance, fuel, crew capability, fatigue, navigation, communications, emergency options and the limitations of the yacht.
For us, passage planning is a process rather than a single route drawn on a chart. Conditions can change, so the plan needs alternatives and clear decision points. This becomes particularly important in the South Pacific, where long distances between islands can leave few options once offshore.
Here is how we approach an offshore passage from the initial route assessment through to departure.
The South Pacific Cruising Season
Effective offshore passage planning starts well before you leave the anchorage.
A passage plan needs to account for weather, sea conditions, distance, fuel, crew capability, fatigue, navigation, communications, emergency options and the limitations of the yacht.
For us, passage planning is a process rather than a single route drawn on a chart. Conditions can change, so the plan needs alternatives and clear decision points. This becomes particularly important in the South Pacific, where long distances between islands can leave few options once offshore.
Here is how we approach an offshore passage from the initial route assessment through to departure.
South Pacific cruising season runs from May through October. This 5-month window tends to steer clear of cyclones. Most departures east tend to leave from Gold Coast and Coffs Harbour, off the Australian east coast.
Building Routes around Weather
The key here is being flexible with your departure date. The departure window really needs a good few days of our cold southerly winds to boost you into the Coral Sea.
The sea area is the confluence of the South Pacific Ocean and the Coral Sea. We will refer to it as the Coral Sea for this article. During the 5 month cruising window, sub tropical ridge tends to the direction and speed of the winds in the Coral Sea, in particular further north.
The weather is heavily dominated by the stable southeast trade winds. During this dry winter period, wind directions blow consistently from the east-southeast to southeast.
Wind strengths, while reasonably constant, range from 15 to 25 knots. If a high-pressure system intensify over southern Australia, fresh to strong breezes (25 to 30 knots) can eventuate for a day or so. The challenge here is that it whips up the swell.
Clear skies with lower humidity and little rainfall are the norm. The constant winds tend to bring sustained moderate to rough seas.
Plan the Major Passage Legs
The key here is being flexible with your departure date and arrival port. We always start with a Plan B, the what if scenario. We also use a PNR (point-of-no-return) and a Divert Point.
The PNR is normally half way into passage and is calculated using wind and currents. Given the consistent southeasterly winds during cruising season, our PNR can be up to 3/5ths (or evening of day 3 of a 6 day passage).
If you reach your PNR and decide to return, our experience shows that it is easier to track slightly north of the outbound route. This would permit an entry into Australia from Brisbane to Gladstone. Be aware of Australian entry reporting. You need an extremely good reason to not meet these.
The Divert Point is for the arrival. What if...(say Noumea) is in lock down. This has actually happened to us. Where do you go? A 6 day trip now becomes a 10-12 day trip, even if you continue to Vila (Vanuatu), Nadi (Fiji) or back to Australia.
Remote Cruising | Prepare the Yacht
Cruising the South Pacific presents unique challenges due to vast distances between islands and scarce safe anchorages for rest, provisioning, or emergency repairs.
Haulout facilities and skilled marine trades are exceptionally rare, meaning vessels must be meticulously maintained and carry comprehensive spares.
Furthermore, electronic charts (and paper charts) can be dangerously inaccurate; reliable navigation demands tools like OpenCPN alongside constant visual watchkeeping.
Sparse medical care, limited transport, and unreliable, often contaminated diesel and fuel add to the risks.
Without rigorous preparation, these hurdles can derail a passage, reinforcing why meticulous voyage planning remains vital for a safe cruising season.
Re-enforcing what we discussed in Part 1 of 4. It is so important.
Offshore Provisioning for 5 Months!
How on earth do you plan provisions for 5 months? The yacht will sink.
If you are on a special diet, South Pacific provisioning becomes even more challenging. Like Africa, many remote villages are sustenance farmers.
They do not grow large amounts of fresh food, so there are limited offerings for sale. Buying food in a village can be very difficult. We would love to stock up, but we need to leave food for the villagers rather than empty their supplies.
We carry basic yacht provisions including rice, flour, pasta, yeast, coffee, tea and condiments. Here is a guide we use for departure from Australia.
It must be noted that there are very strict biosecurity rules, when arriving in New Zealand or Australia. You must be free of nuts, meat, fish and poultry. Customs requirements vary throughout the South Pacific. RandR's shortcut this process by being assisted with current arrival data.
Before departing Australia, we locate a butcher who cuts and cryovacs our meat into individual portions. We avoid pork because it can be difficult to clear in some countries. We limit chicken because it is widely available throughout the South Pacific.
For long offshore passages, meals are normally cooked and frozen in single portions for the planned passage. This relies on reliable yacht refrigeration. Plan for refrigeration failure. If everything fails, we have pasta and bottled sauce for all crew for five days.
Prepare the Crew: Coastal Sailing vs Offshore Passage-Making
Coastal sailing and offshore passage-making are very different experiences. Coastal sailing offers regular stops, access to food and rest, and the security of land nearby.
Offshore passage-making means spending several days at sea without stopping. Crew face constant motion, limited opportunities to prepare food, night watches, and 3–6 hour watch rotations. Fatigue can quickly become a serious issue.
We place considerable emphasis on managing watch schedules, sleep, food, fatigue and crew expectations.
Offshore sailing can be a positively life-changing experience, but without clear preparation and guidance, the stress and fatigue can also place significant strain on marriages, friendships and crew relationships.
These topics include:
1. Introducing Training,
2. Crew Manuals,
3. Crew Advice Forms,
4. Fatigue, and
5. Offshore Responsibilities.
Build Your Offshore Sailing Toolkit
Build your offshore sailing knowledge and skills gradually.
There is a wealth of information, experienced sailors and support available, particularly through offshore sailing forums and organised rallies.
We have completed 8 rallies as of 2026 and are preparing to register for Rally 9 back into the South Pacific. Rallies provide practical experience, weather information, communications, logistics and the opportunity to mix with like-minded offshore cruisers.
If you are unsure about joining a rally, do yourself a huge favour and watch this recently posted video. It may change your view of what an offshore sailing rally is actually about. With around 200–250 boats joining South Pacific Cruising season, there is a good reason they remain popular.
Just be warned, you may get hooked.
Offshore Sailing Runs on Weather, Not Dates
Cruising is not racing. There is no fixed schedule, and offshore sailing means weather dictates when you leave.
A suitable departure window might arrive in two days, two weeks, or longer. Some sailors have waited six weeks in New Zealand for the right conditions. Trying to force a departure can turn a manageable passage into a serious problem.
This uncertainty can also make crew planning difficult, particularly for people new to offshore sailing.
Work, flights, leave and personal commitments all have to remain flexible when the weather decides the schedule.
