How to read nautical charts
by Simon Jollands | Crewing skills, Navigation, Preparation
Whilst most sailors today rely on GPS to find their way at sea, nautical charts are a crucial tool for any sailor to navigate safely and effectively. Here is a reminder of some of the basic steps involved in reading a nautical chart:
Learning about diesel engine maintenance
by Safe Skipper | Boat Maintenance, Preparation, Yacht ownership
Marine diesel engines are internal combustion engines that are designed specifically for use in maritime applications. These engines are commonly used in a variety of watercraft, ranging from small boats and yachts to large ships and vessels. Learn about marine diesel engine maintenance courses.
ESSENTIAL BOATING APPS >>

Safe Skipper App ā a practical guide to managing risk at sea
Fast access to essential boating tips, emergency guidance & MAYDAY call support. Record vessel details & crew information. Save favourites & location. Be better prepared!

US Inland Navigation Rules App
Complete Inland Navigation Rules for all U.S. inland waters and the Great Lakes.
With 100+ specially produced explanatory illustrations and captions, for all recreational and commmercial vessels navigating US intracoastal waterways and the Great Lakes.

ColRegs: Navigation Lights & Shapes App
Provides skippers and crew of sailboats, power boats and commercial vessels worldwide with a quick reference tool to identify vessels in their vicinity and the activities they are engaged in.

Knot Bible App - Knots Made Easy
Learn the 50 essential boating knots for mooring, anchoring and rigging, with step-by-step photos, save favourites, search, clear instructions and practical Knot Scores.

ColRegs: Buoys & Lights App
All the essential quick reference knowledge you need to quickly recognise and interpret the buoys and the light markers and improve your overall boating skills and safety on the water.
As specified by the International Association of Lighthouse Authorities (IALA) Systems A & B.Ā

Boating First Aid at Sea App
This app provides rapidly accessible guidelines for dealing with medical emergencies in a small boat or yacht at sea.
As well as detailing medical procedures the app also provides information on emergency communications.
Take a look at the new features!

ColRegs: Rules of the Road App
All the boating Rules of the Road in our essential quick reference boating app. Search the rules, Save Favourites, continue studying and test yourself! Used by seafarers worldwide.

Start Sailing: Yachts App
Learn the essentials of yacht sailing with 100+ expert illustrations, useful crewing tips, quick search, save favourites, quizzes and reliable offline access.

ColRegs: 3 App Complete Collection
The ColRegs Complete Collection brings together three highly visual reference, learning and revision apps for skippers and crew of sailboats, powerboats, fishing boats and commercial vessels.
How to ensure your boat is in proper working condition
In this article Eva Tucker from Volvo Penta presents a handy check list of all the things that you need to check regularly in order to make sure that your boat is in a seaworthy condition. Including maintenance, safety gear and electrical checks.
How to Avoid Collisions At Sea with ColRegs
Estimating your position at sea
Navigators use a combination of techniques to estimate their position at sea. The primary method used today is GPS (Global Positioning System), a network of 24 satellites that became fully operational in the 1990s and was originally restricted for use by the United States military.
Cleaning & polishing gelcoat topsides
The gelcoat topsides of a GRP boat can be pampered and restored to their former glory relatively easily when it is ashore. Gelcoat is only a very thin outer layer of the hull, often less than 1mm thick, so you should avoid cleaning it with highly abrasive cleaners, or an-ything that could potentially damage its surface.
Antifouling for leisure boats – Part 2
To prepare for antifouling, as soon as your boat has been lifted out and pressure washed, you need to check all the surfaces of the hull below the waterline, remove any remaining barnacles and check for blisters.
Finding your way at sea: waypoints
Any sea voyage needs a certain amount of planning before it is undertaken. It makes sense to think about where you are going, how you will get there and what factors might influence your plan. Planning the route itself is also critical. One of the essential parts of modern navigation is the use of waypoints.
Boat electrics
All boat owners should have a basic knowledge of electrics, both to avoid encountering electrical problems at sea and to stand a chance of solving them should they occur.
Boat Handling – anchoring
Crew Overboard Drill – Updated
Always have an emergency ditch bag ready to go…
Boat maintenance below decks
While most interior maintenance work can be done when a boat is afloat, some jobs such as servicing the seacocks have to be done ashore. It makes sense to do any major interior repairs and improvements with the boat hauled out in the boatyard.
Boat ownership – some fundamentals
Owning a boat is a big commitment that should bring no end of satisfaction, but the costs of maintaining and keeping a boat are significant and should never be underestimated.
Sending distress signals
In an emergency situation at sea, it is a top priority is to know how to send and receive emergency radio calls and alert others of your predicament. Likewise, if you receive a distress signal, you must be ready to go to the help of others.
Understanding your mast and rigging
Essential Knots: Round turn and two half hitches
Boat Engine Safety Checks
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Part 8 – Arriving at the Azores
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the eighth of a 10-part post where solo sailor, Bernie Branfield, shares his first-hand account of his single-handed, 2022 Jester Challenge, from Plymouth, UK to the Azores, in his 26′ Invicta Mk2, Louisa.
Estimating and plotting your position at sea
This post covers how we go about estimating and plotting our position using traditional methods, when out of sight of land – covering Dead Reckoning, Estimated Position, Tidal Streams, Leeway and more…
Dripless shaft seals
Dripless shaft seals are designed to completely stop water from entering a boat’s hull via the stern tube. There are two main types of dripless seals known as face seals and lip seals which many boat manufacturers now fit to production boats.
Boating Rules of the Road – International ColRegs
How to trim a genoa sail
I recently had two new sails made by Sanders Sails, based in Lymington UK. The first to arrive was the new genoa and it took me a little while to get to know it and learn how to adjust it correctly. Here is an aide memoire for getting to know how to trim a genoa so that it will deliver the best performance.
First aid at sea basics
At least one person on board should be trained in first aid and know how to administer the contents of the first aid kit, ensuring there are adequate supplies for the planned duration of the trip.
Common marine electrical problems
Most problems with marine electrical systems arise from four possible sources, a lack of maintenance, a poor standard of initial installation, insufficient battery capacity, or ineffective charging systems.
Water ingress is a frequent issue ā salt water can corrode contacts very quickly. If connections are not scrupulously clean ā or are loose ā resistance will be increased, resulting in progressively reduced power.
Tidal terms and definitions
Getting to grips with tidal terms and definitions can seem a little daunting, even to the most experienced sailors! Here we look at some of the key terms and definitions associated with the language of tides.
Steel hull maintenance
A steel boat owner’s biggest enemy is corrosion. You don’t have to worry about osmosis or rotting timbers, instead rust is the number one issue that will keep you awake at night.
Welcome to the Safe Skipper website.
Safe Skipper is run by boating enthusiasts who also have a background in publishing and TV production, design and app development. As well as creating great content for the website, weāve developed a range of popular boating apps that allow you to get safely out on the water whilst having essential information to hand, covering International ColRegs: Nav Lights & Shapes, Rules of the Road, Buoyage & Lights to knot tying, nautical chart symbols and first aid at sea – all information available to you when on the water, on your phone or tablet, when you need it.
Weāre regularly adding new articles to the site, hope youāll bookmark us and visit again soon.
Before you go, scroll down to our boating quizzes and check your boating knowledge!
First Aid Afloat – Jellyfish Stings
Avoiding personal dangers at sea
In order to stay safe at sea, we need to know the risks we are facing and to be aware of any personal dangers we could possibly encounter. Here are six of the most common potential dangers individual crew members should be aware of.
Cleaning & polishing painted topsides
The gelcoat topsides of a GRP boat can be pampered and restored to their former glory relatively easily when it is ashore. Gelcoat is only a very thin outer layer of the hull, often less than 1mm thick, so you should avoid cleaning it with highly abrasive cleaners, or an-ything that could potentially damage its surface.
Boat engine basics
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Part 6 – Communications
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the sixth of a 10-part post where solo sailor, Bernie Branfield, shares his first-hand account of his single-handed, 2022 Jester Challenge, from Plymouth, UK to the Azores, in his 26′ Invicta Mk2, Louisa.
First aid at sea basics
At least one person on board should be trained in first aid and know how to administer the contents of the first aid kit, ensuring there are adequate supplies for the planned duration of the trip.
The Boatyard Book – a boat owner’s guide to yacht maintenance, repair and refitting
The Boatyard Book is a fully illustrated 224 page practical reference manual that provides advice for boat owners on planning and carrying out annual maintenance, repairs, upgrades and refits of sailing yachts and motorboats, up to 20 metres in length.
Marine engine electrical system
The typical basic electrical system associated with a marine engine includes a dedicated engine starting battery, a starter motor, a charger in the form of an alternator, a solenoid and some engine sensors and instruments.
Safety Briefings – leave nothing to chance
Understanding boat engines
Irrespective of what kind of engine a boat is equipped with and who does the work, the regular care and maintenance of a marine engine is essential. The most common cause of marine engine failure is widely known to be lack of maintenance.
I have just downloaded and am using ColRegs Nav Lights & Shapes app, a brilliant training and reference device
Instructor
Beautifully produced and very simple to use, a cool learning tool
Sailor
Nav Lights & Shapes app – downloaded by 1000s of seafarers worldwide. Just one of our popular boating apps to download from the appstores for Apple and Android devices.
Sail care and maintenance – Part 1
When thinking about the care, maintenance and repair of sails it helps to have some understanding of the properties of the ever growing range of modern sailcloth and the fibres they are made from, as opposed to the traditional canvas sails of the past.
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Part 6 – Communications
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the sixth of a 10-part post where solo sailor, Bernie Branfield, shares his first-hand account of his single-handed, 2022 Jester Challenge, from Plymouth, UK to the Azores, in his 26′ Invicta Mk2, Louisa.
Keel maintenance and Repair – Part 2
If you have ever witnessed a boat colliding with a rock or other submerged obstacle you will know that there is an almighty thump and the whole boat shakes and judders. While such hard groundings seldom result in catastrophic keel failure, something has to give and even the sturdiest keels can easily be damaged by such an impact.
Understanding your mast and rigging
Antifouling for leisure boats – Part 4
Applying antifouling. Antifouling is best applied on a dry, calm day. It is best to apply the antifouling in the middle of the day to ensure the hull is dry and as warm as possible.
Hull inspection – the annual checks
Boat electrics
All boat owners should have a basic knowledge of electrics, both to avoid encountering electrical problems at sea and to stand a chance of solving them should they occur.
Peer to Peer yacht charter – How can you monetize your boat?
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Part 10 – The Return Trip
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the final instalment of a 10-part post where solo sailor, Bernie Branfield, shares his first-hand account of his single-handed, 2022 Jester Challenge, from Plymouth, UK to the Azores, in his 26′ Invicta Mk2, Louisa.
Is Boating Good for Your Health and Happiness?
The give-way hierarchy at sea ā who gives way to whom?
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Part 4 – Navigation
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the fourth of a 10-part post where solo sailor, Bernie Branfield, shares his first hand account of his single-handed, 2022 Jester Challenge, from Plymouth, UK to the Azores, in his 26′ Invicta Mk2, Louisa.
Common marine electrical problems
Most problems with marine electrical systems arise from four possible sources, a lack of maintenance, a poor standard of initial installation, insufficient battery capacity, or ineffective charging systems.
Water ingress is a frequent issue ā salt water can corrode contacts very quickly. If connections are not scrupulously clean ā or are loose ā resistance will be increased, resulting in progressively reduced power.
Boat Security: Protecting your vessel from theft & vandalism
Boats are susceptible to theft and vandalism. Protecting your vessel from these risks requires a proactive approach to boat security. In this comprehensive guide, we’ll explore the various threats to boat security and provide practical strategies and technologies to safeguard your investment and enjoy peace of mind on the water.
Wooden Hulls – Part 2
It is important to ensure the essential hull maintenance of a wooden boat is done, even if you are paying others to look after your boat for you. The priority is to prevent rot from taking hold. The protective layers of paint and varnish over wood are far more critical than on GRP boats, where the topsides are painted more for cosmetic reasons.
How to tackle osmosis
Anchoring – getting it right
Sailboat rig checks – Part 1
Sailing boat rigs need to be checked regularly to reduce the risk of rig failure at sea. In part one of Sail boat rig checks we run through a series of useful checks that owners and skippers can carry out.
Essential yacht tender safety for skippers and crew
Common medical emergencies at sea
A medical emergency aboard a boat at sea requires immediate attention to ensure the safety of the casualty and the crew in general. The skipper needs to know which crew members, if any, have had medical training or have a first aid qualification. All boats should carry first aid handbooks to help an untrained crew cope with a medical emergency.


