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 – 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.

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.
Understanding tides
Sailing to windward – how to take advantage of wind shifts
For most sailors, sailing upwind is the most exhilarating point of sail as you tack your way to your destination. Sailing to windward is a bit like zig-zagging your way up a mountain road through a series of hairpin bends – great fun but also calling for concentration and hard work.
The Round The Island Race 2023
This year’s Round the Island Race turned out to be a really thrilling and competitive event. 1100 boats entered the race, which took place on Saturday 1st July. The race started from the world famous Royal Yacht Squadron line in Cowes UK, with the largest and fastest boats starting first, leaving the rest of us to wait our turn.
How to cope with an emergency at sea
A safe skipper will be mentally prepared for all kinds of potential emergencies happening at sea, including medical emergencies, engine failure, fire, a holed hull, capsize and dismasting.
Repairing a leaking hull-to-deck joint
Wooden Hull Repairs
While wooden boat hull maintenance is mostly straightforward, it is always a good idea to take expert advice on any repair job needed doing to a wooden boat, unless you have done the job before and know what you are doing.
How to Avoid Collisions At Sea with ColRegs
Sailboat rig checks – Part 2
In part two of Sail boat rig checks we run through some useful rig maintenance tips and then finish with a brief look at what a professional rig check involves.
Rewiring a boat – overcoming the challenges involved
Skippers need to have a basic knowledge of boat electrics, to avoid potential problems and to be able to solve them when they happen.
Passage planning and pilotage
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.
Rudders and steering systems – Part 2
One thing all rudders have in common is that they have three main parts that need to be checked: the rudder, or a steerable drive leg in the case of many power boats; the system that joins the rudder to the steering; the steering control itself.
Boat interior varnishing
Most boat interiors have a combination of varnished and painted surfaces including solid wooden joinery, plywood laminates with thin hardwood veneers and glass reinforced plastic. When making your assessment of what you are going to do, bear in mind that the varnishing process consumes a lot of time, especially if the existing surfaces are in poor shape.
Man Overboard Drill
Essential Knots: Round turn and two half hitches
Understanding marine sealants & adhesives
A simple guide to understanding tides when passage planning
Boat electrics inspection checklist
With the boat ashore, here are some recommendations for carrying out a boat owner electrics inspection. Safety is always paramount so remember to do the checks with the batteries off. Wearing a head torch helps, make notes as you go and only tackle a repair if you are 100% sure you know what you are doing:
Keel design – options to consider when choosing a yacht
Stress cracks on GRP boats
It is quite common to find cracks in the gelcoat when inspecting the deck and superstructure of a GRP boat. It is important to differentiate between a gelcoat crack and a scratch.
Understanding your boat’s compass
Boat Improvements
Learn ColRegs: Traffic Separation Schemes
Getting a tow for your sail or power boat at sea or on inland waterways
Boatyard Health and Safety
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, we’ve 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.
We’re regularly adding new articles to the site, hope you’ll bookmark us and visit again soon.
Before you go, scroll down to our boating quizzes and check your boating knowledge!
Boat Improvements
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Part 2 – Weather
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the second 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.
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.
Tips and advice for staying safe on a sailboat at sea
Here we focus on how to stay safe on a sailboat at sea. We cover key things to ensure you have on board before you set sail as well as covering the most common cause of incidents on sailboats and how to deal with them.
Boat interior inspection and checks
While a boat is ashore, the most critical interior checks to carry out are those that concern the safety of the boat. This entails the integrity of all through-hull fittings and seacocks, the gas system and the electrical system.
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 boat’s compass
Sailing at the touch of a button
Easier and more controlled sail handling can also be achieved by powering up a furling mast. I came across some interesting solutions at the Southampton Boat Show this week on the Selden Mast stand, where they were running demos of their E40i electric winch and SMF furling system.
Boat batteries
Under-sized battery banks are one of the key factors behind power failure at sea, as well as the premature failure of batteries, so make sure that your boat battery measures up to the use you want to put it to.
Medical Emergency at Sea
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.
Sailing at the touch of a button
Easier and more controlled sail handling can also be achieved by powering up a furling mast. I came across some interesting solutions at the Southampton Boat Show this week on the Selden Mast stand, where they were running demos of their E40i electric winch and SMF furling system.
Navigating the Unknown: Boating in Limited Visibility
Sailing or Motor Boating in limited visibility, whether due to darkness, fog, or other adverse weather conditions, presents unique challenges for mariners. It requires a combination of skill, experience, and adherence to safety protocols to ensure a safe and enjoyable journey. In this article we will delve into the intricacies of sailing in such conditions, providing insights into preparation, navigation, and collision avoidance.
Fractures, sprains and dislocations at sea
Moving about a boat at sea often results in a few knocks and bruises, but if a crew member has a fall or major bump and is in serious pain, they should be examined and treated accordingly.
An explanation of the IALA maritime buoyage systems – IALA A and IALA B
Engine failure at sea – common causes and how to avoid them
Many engine failures are caused by lack of maintenance, resulting in fuel filter blockages, water pump failures, overheating and other breakdowns. Indeed, one of the most common reasons for marine rescue service call outs is for one of the most basic reasons possible – boats that have run out of fuel.
Top Tips For Learning: ColRegs Boating Rules Of The Road
Colregs Boating Rules Of The Road
The International Regulations for Preventing Collisions at Sea (COLREGs) are a set of rules designed to prevent collisions between vessels. They are essentially the “rules of the road” for boats. Some key concepts within the COLREGs include:
Essential Boat Spares for Safety
Tidal heights and the rule of twelfths
For those skippers who need to make a quick calculation or don’t have access to specific tidal curves for their location, it is possible to make an approximation using a system called the Rule of Twelfths. This is a simple method used to estimate the height of tide at any given time during the tidal cycle. It is based on the idea that the rise and fall of the tide is not constant, but follows a predictable pattern than can be divided into twelve parts.
Top five windvane self steering installation questions
Top five windvane self steering installation questions answered by Sarah Curry of Hydrovane International Marine, courtesy of Viki Moore from Island Cruising NZ
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.
Light characteristics – how do navigators identify lights at night?
Diesel engine winterisation
An inactive boat engine needs to be protected from corrosion during the winter, caused by the rising humidity levels through the cold months and the salty coastal air. This applies whether the boat is left afloat or hauled out over the winter. Read here about the two important stages of winterisaton for a diesel boat engine.
Essential yacht tender safety for skippers and crew
Boat decks and superstructure
The deck of a boat is constantly exposed to the elements and should be inspected on an annual basis. Particular attention needs to be given to the overall condition of deck fittings such as the stanchions, cleats and chainplates.
Medical Emergency at Sea
Avoiding collisions at sea – how to stay safe on the water
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.


