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.
Understanding your boat’s compass
Marine toilets – care and maintenance
There are a number of different types of marine toilet, or heads. They fall into one of three categories ā manual, electric and vacuum, the most common being the manual, hand pumped type. These have double acting piston-pumps which both discharge the waste and flush the toilet with sea water.
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.
Seacock maintenance
If seacocks are always left open and neglected they can eventually seize which will prove a serious threat to boat safety should a connecting hose fail and the seacock refuses to close. There are three main types of seacock ā ball valves, cone valves and gate valves.
Boat Engine Safety Checks
ColRegs Nav Lights & Shapes, Rules Of The Road and IALA Buoys Apps
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.
Essential Knots: Sheet bend
Sailing & Motoring in Fog
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.
Boating emergency – how to broadcast a MAYDAY emergency call
Rig check – how to prevent failure at sea
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.
Right boat vs Wrong boat – Over 30 Ways to Cut the Cost of Your Sailing and Cruising
Sailing and cruising offer unparalleled freedom and adventure, but they can quickly become costly. Fortunately, there are numerous strategies to help you enjoy the open water without breaking the bank. Here are over 30 practical ways to cut your sailing and cruising costs.
Steel and Aluminium Hulls
The two metals used for hull construction are steel and aluminium. These are both very strong materials and will last a long time as long as they are cared for, which primarily means protecting steel boats from rust and aluminium boats from electrolytic action.
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.
A simple guide to understanding tides when passage planning
Rudders and steering systems – Part 3
In the third of our three blog articles on rudders and steering systems, we look at how to replace rudder bearings and repair a water-saturated core.
Sail care and maintenance – Part 2
At the end of the sailing season sails should be washed and inspected carefully for damage, including small tears, stitching failure, ultraviolet damage, stains and mildew.
A five day sailing cruise of the Solent, UK
Essential Knots: Clove hitch
Sailing into a storm
Weather forecasting has become increasingly accurate, but despite this, I was caught out recently by a forecast that considerably underestimated the wind strengths and consequently was sailing single handed in to a Force 8 gale, which proved to be challenging!
Marine engine oil system maintenance
The regular maintenance of a marine diesel is key to preventing engine failure at sea. This means doing regular checks of the fuel, cooling, electrical and oil systems.
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Getting to the Start
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the start 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.
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.
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!
Going aground – what to do if it happens to you
When a yacht runs aground, it can be a stressful situation, especially on a falling tide in an exposed position with a swell running. There are several steps you can take to address the situation in order to ensure the safety of your vessel and its occupants. Here are some tips should this happen to you.
Five dangers a vessel may encounter at sea
What are the main dangers a vessel may face at sea and what should skippers do to reduce the risk of these happening?
2023 Rolex Fastnet Race
Safe Skipper’s Simon Jollands took part in the 2023 Rolex Fastnet Race – a classic offshore sailing event. This is the first of several articles on the race and focuses on the start.
Essential Knots: Sheet bend
Sterndrive maintenance
Sterndrives are a popular form of propulsion in the powerboat market, but require a fair amount of care and maintenance. The main factors to be aware of are salt water corrosion, lubrication and regular inspection of the bellows, the condition of which is vital to prevent water from entering into the hull.
Gybing a sailing boat
Safety at sea principles
Safety at sea is not as simple as just spending money adding shiny new emergency equipment such as liferafts, danbuoys, distress flares, EPIRBs and so on.
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.
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.
Seasickness – how can you prevent it?
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.
Propeller care and maintenance
Propellers are complicated and repairs should be done by specialists but owners can carry out checks and some routine maintenance themselves when the boat is in the boatyard. A propeller is critical to a boat’s performance, fuel consumption and ride, so it makes sense to keep a propeller in good working order.
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.
Five dangers a vessel may encounter at sea
What are the main dangers a vessel may face at sea and what should skippers do to reduce the risk of these happening?
The VHF DSC Radio jargon buster
Boat engine cooling systems
Some boat engine breakdowns are unavoidable but those caused by lack of maintenance or regular checks can be avoided. Failure to maintain an engine’s cooling system is a well known example of this, so it is well worth spending time checking over the cooling system both when the boat is ashore and afloat.
Understanding marine sealants & adhesives
Essential Knots: Sheet bend
How to Avoid Collisions At Sea with ColRegs
Fire safety advice at sea from the Marine & Coastguard Agency
Rig check – how to prevent failure at sea
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.
Jester Challenge 2022 – Sailing single handed from Plymouth UK to the Azores: Part 5 – Boat Management
Jester Challenge – A modern experiment in old-fashioned self-reliance, self sufficiency, and personal responsibility. This is the fifth 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.
Points of Sailing
Saildrive maintenance
There are less maintenance tasks to carry out on a saildrive transmission than on a traditional inboard shaft drive system with its associated stern gear. However, there are a few critical things that require maintenance, as recommended in detail by the engine manufacturers, and should be adhered to.
Electric motors and hybrid systems
In recent years there have been considerable advances with the development of electrically powered propulsion in the leisure marine sector. This includes developments with inboard and outboard electric motors, hybrid systems, lithium-ion battery technology as well as solar, wind and hydro powered generators.
Leaking decks
Leaking decks are perceived as a nuisance by some boat owners, but if leaks are ignored a much more serious situation may well be developing, especially in the case of boats with balsa or plywood deck cores. So deck leaks do need to be investigated and dealt with.
ColRegs when sailing single handed
Sailing into a storm
Weather forecasting has become increasingly accurate, but despite this, I was caught out recently by a forecast that considerably underestimated the wind strengths and consequently was sailing single handed in to a Force 8 gale, which proved to be challenging!


