Essential Catamaran Prep for Safe Offshore Cruising
'You need time on your side. An Offshore trip is only as good as the preparation you put in'...James
let's go...
let's go...
What drives someone to take on the enormous challenge of offshore cruising? It’s far from ordinary life. For some, it’s the pull of the unknown. For others, it’s the desire to test themselves against nature, uncertainty, and the open ocean.
Whatever the motivation, reaching the point of true offshore readiness rarely happens overnight. For us, it took two full years of steady preparation, careful planning, and incremental progress before we felt genuinely ready to depart.
Was the yacht prepared for offshore sailing?
We believed it was. Months spent in remote anchorages and isolated cruising grounds revealed weaknesses. Every haul-out became another opportunity to improve systems, solve problems, and refine the boat for long-distance passage making.
Over time, you begin to understand every sound and movement of the yacht — every squeak, vibration, and shudder. With each offshore passage, confidence in both the vessel and your preparation grows stronger.
Of course, offshore cruising also delivers moments that instantly sharpen your focus: close encounters with reefs, unexpectedly shallow water, or submerged rocks sitting only centimetres beneath the keel.
Experiences like these remind you that preparation, seamanship, and situational awareness are everything.
Until you’ve navigated your most valuable asset through conditions like this, it’s difficult to fully appreciate the intensity and responsibility of offshore sailing.
We talk about this a little more shortly, however, what do you do with a medical emergency, such as a burn occurs? What does your medical training tell you to do.
THIS IS REAL...ask us. It happened to us. We were flown internationally to treatment and have a skin graft to prove it. Does your Insurance help...offshore?
The reality is simple: preparing a yacht for offshore cruising is not a weekend project. It can easily take 24 months of upgrades, maintenance, testing, and experience-building to get prepared.
Add time to your offshore cruising TO DO list.
It wasn’t until we were truly offshore that we understood what real 2-metre and 3-metre ocean swells actually felt like. Coastal sailing and offshore passage making are completely different experiences, and the learning curve becomes very real the moment land disappears behind you.
We also quickly realised how much we still had to learn.
Joining our first offshore rally became the fastest way to accelerate our knowledge and understanding of bluewater cruising. It provided a safer environment to gain experience, learn critical offshore sailing lessons, understand the seriousness of ocean passages, and discover the level of planning required for this kind of adventure.
Then the questions start coming.
What medications are legal to carry between countries? Are you prepared to administer injections or emergency medical treatment at sea? Why should freshwater tanks be divided with isolation valves? What exactly is the purpose of a yellow quarantine flag?
Suddenly, offshore cruising introduces an entirely new language and skillset.
O.N. registration. Jacklines. Joker valves. PLBs. Redundancy systems. Spare parts inventories large enough to resemble a small marine chandlery.
And then comes the paperwork.
Authorities request EDN and IDN forms, crew lists, crew declarations, one-way travel documents, vessel registration paperwork, ship’s stamps, electronic equipment serial numbers, insurance details, and endless compliance requirements that vary from country to country. We made a Crew Manual that brings all this together.
The deeper you get into offshore cruising, the more you realise that successful long-distance sailing depends on three things above all else: preparation, redundancy, and self-reliance.
For many cruisers, this stage alone can take between 6 and 18 months to organise properly, especially when it comes to offshore sailing training, certifications, medical preparation, vessel documentation, and international clearance requirements.
Add these questions to your offshore cruising TO DO list.
“We’ve bought the dream boat. It just needs a little TLC, then we can make those dreams come true.” That’s how many offshore cruising adventures begin.
The reality, however, is that offshore and remote-area cruising demands a completely different level of preparation, redundancy, and self-sufficiency than most new owners initially expect.
We deliberately purchased a yacht with proven offshore pedigree, a vessel that had already completed extensive single-handed voyages throughout the Pacific. That history gave us confidence in the boat’s capability and seaworthiness.
But it didn’t take long to uncover the gaps between perception and reality.
The gas system, despite previous assurances, turned out to be non-compliant. The life jackets looked like relics from another era, outdated, deteriorated, and nowhere near current offshore safety standards.
Then came the offshore medical kit.
For anyone without a medical background, opening that kit can be a confronting experience. You suddenly realise that once offshore, you may be responsible for handling serious injuries and medical emergencies hundreds of miles from professional help.
The mechanical inspections told a similar story.
During a routine oil inspection, we discovered metal fragments in one of the saildrives (2018), despite receiving documentation from the broker stating it had been professionally rebuilt and installed only months earlier in Fiji.
Offshore cruising teaches an important lesson very quickly:
Trust is valuable, but verification is essential.
Every system onboard must be checked, tested, serviced, and understood personally before committing to serious offshore passages.
For many cruisers, the purchase and refit phase alone can take 24 to 36 months to properly sort out, especially when addressing safety compliance, mechanical reliability, offshore medical preparedness, electrical systems, documentation, and long-term cruising upgrades.
Add these tips to your offshore cruising TO DO list.
Medical evacuations from the middle of the ocean can cost tens, or even hundreds of thousands of dollars.
In many situations, the skipper may be held financially liable unless responsibilities and liabilities have been clearly documented in advance.
That’s one of the key reasons a Crew Declaration is so important for offshore sailing.
What catches many cruisers off guard is that standard travel insurance policies often exclude incidents occurring aboard a private yacht in international waters. Always read the fine print carefully and look specifically for exclusions relating to “private yacht” or offshore passages.
Securing yacht insurance can also be challenging. Before coverage is approved, insurers typically require a detailed marine survey to assess the vessel’s condition, seaworthiness, and overall safety standards.
In countries such as New Zealand, and increasingly Australia, insurers are also paying closer attention to crew qualifications, safety training, and onboard compliance procedures.
For sailors over 50, cardiovascular health becomes an even greater consideration offshore. Automated external defibrillators (AEDs), together with current CPR and resuscitation training, are rapidly becoming essential safety equipment for extended voyages.
As a result, a dedicated marine first aid course is no longer simply a good idea — it’s becoming an essential part of responsible offshore preparation.
This all contributes to the classic insurance dilemma many sailors face: feeling “damned if you do, damned if you don’t,” where every decision involves balancing safety, liability, cost, and complex policy conditions.
This takes 6 months to sort out, in particular the Crew Declaration.
Add Insurance and First Aid to your TO DO LIST your offshore cruising TO DO list.
If you weigh more than 75kg and become the MOB (man overboard), your crew must be capable of recovering you quickly and safely — especially offshore, where swell, fatigue, and panic can rapidly turn a survivable incident fatal.
Talking about MOB procedures is not enough. Under stress, people forget. What crews really need is a documented recovery plan supported by realistic practice and training. Start in calm water and simply try boarding your yacht without steps — it quickly reveals how difficult real recovery can be.
We originally carried a Dan Buoy system, but after experiencing offshore swell conditions, we upgraded to a Jon Buoy recovery system. That experience completely changed our thinking about offshore MOB recovery. Locating the casualty is only the beginning, getting them back onboard is often the hardest part.
The idea of trailing a line aft of the vessel, is nonsense. Watch this video, they are only doing 4kts in calm seas.
1. Could you (in a split second) swim back, and grab a trailing rope at 4kts?
2. How do you make a recovery after braking your arm from the overboard fall?
3. This man (in the video) struggles to hold on, most people (clothed), can't!
4. Ever thought about how to swim with a lifejacket on offshore. Can you swim on your front?
There are a lot of takeaways from this video, especially if your other crew member is not confident and has little strength to complete a recovery out of the water.
This should be documented somewhere, to cover any litigation and Insurance inquiries. We use our Crew Manual.
Add both MOB recovery planning and formal crew documentation to your offshore cruising TO DO list.
HF radio is rapidly giving way to modern satellite communications, and for many offshore sailors, the shift is transformative.
Systems such as SpaceX’s Starlink and Iridium GO! now provide offshore crews with far greater connectivity, improved emergency communications, weather access, and real-time contact even in the most remote parts of the ocean.
Despite these advances, traditional marine communication systems still play a critical role onboard.
Fixed and handheld VHF radios remain essential equipment for both coastal cruising and offshore passages, providing reliable short-range communication for vessel traffic, marina access, emergency calls, and onboard safety procedures.
For serious offshore sailing, the safest approach is not choosing one system over another, but building a layered communications setup that combines satellite technology with proven marine radio systems.
An electrician once asked me:
“Why are you installing a second autopilot? They’re incredibly reliable. I’ll do it...it’s your money, not mine!”
Interestingly, despite more than 40 years of marine electrical experience, the electrician also pointed out something many sailors overlook: 'The cabling itself rarely requires full replacement after an electrical fault event.'
Often single-handing more than 50% of the time (and/or sailing with low self confidence), the answer was simple:
Redundancy offshore is not optional.
At sea, critical system failures are never just theoretical possibilities. I’ve personally witnessed a lightning strike completely destroy a yacht’s electronics, instantly disabling multiple onboard systems.
In many real-world lightning strike incidents, including well-documented cases aboard vessels such as Parlay Revival, it is typically the electronic components that fail, while much of the wiring infrastructure survives.
That reality heavily influenced our offshore autopilot redundancy strategy.
In practice, two permanently installed autopilot systems sharing the same onboard electrical environment could easily both be destroyed by a single lightning strike. Rather than relying on fully duplicated fixed installations, we prefer a modular, component-based replacement strategy that is both more resilient and significantly more cost-effective.
Instead of carrying two complete autopilot systems, we store critical spare components inside a Faraday bag. This allows us to rapidly replace failed autopilot electronics at sea while also simplifying offshore troubleshooting, repairs, and long-distance maintenance.
For serious offshore sailing, especially for solo sailors, practical redundancy is not simply about carrying duplicate equipment. It’s about survivability, repairability, and maintaining steering control when critical systems inevitably fail offshore.
Rather than carrying excessive spare wiring, we keep only enough backup cabling onboard to rebuild a basic but fully functional autopilot system if required.
Our offshore experience has repeatedly shown that maintaining reliable steering capability can rapidly become mission critical, particularly during heavy weather, long passages, or extended periods of solo watchkeeping.
This also takes 6 months to sort out, in particular the possible Haulout. Get your Marine Survey done at the same time (for Insurance, they will ask).
Add Haulout and Autopilot to your TO DO LIST for Offshore Cruising.
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