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    How to Read Nautical Charts and 'Maps'

    Paper marine chart
    Understanding how to read nautical charts is one of the most important skills for safe sailing. These special maps are packed with information about water depth, hazards, landmarks, and routes. In this guide, we’ll break down the essentials so you can confidently plan and navigate your sailing trips.
    What Is a Nautical Chart?

    A nautical chart is a map designed for marine navigation. Unlike road maps, charts show:
    • Water depth (in metres or feet)
    • Underwater hazards (like rocks or wrecks)
    • Buoys and markers
    • Tides and currents
    • Navigation routes
    • Shorelines and land features

    You can get nautical charts in two main formats:
    • Paper Charts: Good backup for electronic failures
    • Electronic Charts (ENCs): Used with chartplotters or navigation apps

    Key Features on a Nautical Chart

    1. Depth Contours and Soundings
    • Numbers on the chart show how deep the water is at low tide
    • Depths may be in metres (UK) or feet/fathoms (USA)
    • Shaded areas often indicate shallow zones

    2. Navigational Aids
    • Buoys: Floating markers that guide you through safe water
    • Lighthouses: Mark coastlines and hazards
    • Daymarks: Fixed signs used during daylight

    Learn the IALA buoyage systems (Region A for UK/Europe, Region B for USA/Canada) to understand what each marker means.

    3. Hazards and Obstructions
    • Look for symbols that mark rocks, wrecks, reefs, and sandbars
    • These help you avoid dangerous areas
    4. Latitude and Longitude
    • The grid of horizontal and vertical lines
    • Used for GPS and plotting your position

    ​5. Compass Rose

    • Shows true and magnetic north
    • Helps you set and follow courses
    Compass Rose
    How to Use a Nautical Chart

    Step 1: Identify Your Starting Point and Destination
    • Use known landmarks, marina names, or GPS coordinates

    Step 2: Plot Your Course
    • Draw lines between waypoints
    • Avoid hazards and shallow areas
    • Plan alternate routes in case of weather or tide changes

    Step 3: Check Tides and Currents
    • Use a tide table or app
    • Tidal height can affect where you can safely sail
    Step 4: Use a Parallel Ruler and Dividers (for paper charts)
    • Measure angles and distances
    • Compare with the compass rose

    Electronic chart plotter

    Some Electronic Charting Tools

    Many sailors today use apps or chartplotters with GPS:
    • Navionics (available in UK/USA)
    • iNavX
    • Savvy Navvy
    • OpenCPN

    These apps provide live tracking, tide data, and automatic route planning. But don’t rely solely on tech—always carry a paper chart and compass as backup.
    Tips for Reading Charts Safely

    • Always know where you are: Check your position often
    • Understand chart symbols: Use a legend to decode icons
    • Watch scale and zoom: A small detail may be missed when zoomed out
    • Stay updated: Charts can go out of date—check for updates
    • Practice regularly: Get comfortable plotting on paper even if you use electronics



    Helpful Chart Resources
    • UKHO (UK Hydrographic Office)
    • NOAA Nautical Charts (USA)
    • Navionics App
    • OpenCPN Free Navigation Software
     IALA Buoyage Explained



    Learning to read nautical charts gives you greater freedom and safety on the water. With a bit of practice, you’ll be able to navigate confidently, plan better routes, and avoid trouble spots with ease. Stay sharp, and happy sailing!
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    How to sail: A step-by-step guide for the beginner

    Step 1: Learn the Parts of a Sailboat

    ​Before you start sailing, it's important to know your boat. Which 'pieces of string do I pul and what is the pointy end called?" That sort of thing. Here are some key parts:

    • Hull: The main body of the boat
    • Mast: A tall pole that holds up the sails
    • Boom: A horizontal pole that extends from the mast
    • Sails: Catch the wind to move the boat
    • Rudder: Used to steer the boat
    • Tiller or Wheel: Controls the rudder
    • Keel or Centerboard: Helps the boat stay upright and prevents drifting

    Knowing these parts will help you when you finally get on the water. A great and easy to read book for pre-sailing (and one you can take with you) is the RYA Competent Crew Handbook.
    Sailing is an exciting way to explore the water, enjoy nature, and learn new skills. Whether you dream of cruising the coast or racing in a regatta, this guide will help you learn how to sail step-by-step. 

    ​Step 2: Understand Wind and Sail Basics

    ​Sailboats don’t go straight into the wind. Instead, they move by catching the wind at angles. Here’s what to know:

    • Upwind: Sailing toward the wind (you can only go at an angle)
    • Downwind: Sailing with the wind behind you
    • Beam Reach: Wind comes from the side

    Adjusting your sails based on the wind direction is called 'sail trim'. The better your trim, the faster you sail.

    Step 3: Safety First

    Of course, you are not going to go sailing on your own or without a competent companion. But even if it's just to make sure you bring the right clothing, always check the weather before you go out. Always wear a life jacket, and tell someone your sailing plans. Never go to sea without a VHF radio.

    Bring along useful gear like:
    Step 4: Learn Basic Manoeuvres

    You can sail most sail boats in any direction except for into the wind or very close to that angle (say 30 - 40 degrees either side of the true wind direction). Basically then, you can sail from about 35 degrees 'off' the wind direction all the way down to the direction of the wind (known as a 'run'). You can do this with the wind on the right hand side (or 'starboard' side of the boat or with it on the left hand side ('port' side of the boat).

    When going from the wind being on one side of the boat to the other, we need to turn the boat through the wind. Turning the front of the boat (the 'bow') through the wind is called 'tacking'. Turning the back (or 'stern') of the boat through the wind is called 'gybing'.


    Tacking is safer and more common, especially in strong winds. 

    Tacking: Turning the bow (front) of the boat through the wind

    Gybing: Turning the stern (back) of the boat through the wind

    ​Step 5: Practice Steering and Sail Control


    Use the tiller or wheel to steer. Push the tiller away from you to turn the bow toward the wind. Pull it toward you to turn away from the wind. If you have a wheel and not a tiller, then it works just like a car. Turn right and go right. Turn left and go left. 

    Control your sails with sheets (ropes attached to the back corner of the sail - 'the clew' -  that adjusts sail angle). Pull in the the sail to go upwind, loosen it to go downwind.

    Watch your tell-tales (small ribbons on the leading edge, belly and back edge of sails).

    If the tell tales on the leading edge flutter, adjust the sail angle. In very basic terms, when sailing on a beam reach (wind at 90 degrees to the boat) or 'higher' - i.e. closer to the wind direction - you want the tell tales on the leading edge (also called the 'luff') to be flying on both sides of the sail.


    If the tell tales on the 'leeward' side of the sail (the side facing away from the wind direction) flutter, ease the sheet to let the sail out until they start flying horizontally. If the tell tales on the 'windward' side (the side fronting the wind) are fluttering, pull in the sheet to trim the sail in more. When the tell tales are flying on both sides of the leading edge you have the beginnings of a well-trimmed sail. 

    A good basic is to remember two things when trimming sails;
    1. A flappy sail is NOT a happy sail and
    2. If in doubt, let it out (most novices over-trim sails)

    Step 6: Try Short Trips First

    Start with short sailing trips in calm water. Practice tacking, gybing, and trimming the sails. Keep out of the way of other boats and make sure you know the basics of the 'rules of the road' for sailors. 

    Stay close to shore in water deep enough for your boat - remember tides! Get used to how the boat reacts to your movements. The more you practice, the more confident you’ll become. Make sure to have an instructor with you.
    ​​
    Step 7: Take a Sailing Course

    One of the best ways to learn is by taking a class. Sailing schools teach:
    • Boat handling under power and sail
    • Learn to navigate
    • Safety procedures and good practice
    • Courtesy for other water users
    • Rules of the road and bouyage
    • Understanding weather and weather forecasts

    Step 8: Keep Learning and Exploring

    Once you know the basics, you can try:
    • Sailing bigger boats
    • Joining a sailing club
    • Racing (competition always speeds up your learning)
    • Cruising overnight
    • Ocean crossings
    • Working at sea on posh yachts!

    Sailing is a lifelong skill. Every day on the water is a school day, so just get started! 
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    OCEAN SLEEPING BAG (REGULAR)

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    Carefully used and very good condition. No damage or blemishes. Regular size. Name has been written on inside name label.

    Available in Oban (until 20 July) or Portsmouth (27th & 28th).
    ​Alternatively delivery with postage & packing at cost depending on location.


    More images available on request.

    £200

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    OCEAN SLEEPWEAR VOLVO OCEAN RACE SLEEPING BAG

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    £255 PLUS UK SHIPPING

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    This is the Rolls Royce of the Ocean Sleepwear range. It is the heavy duty rectangular bag. Not the mummy bag. It's amazingly versatile and as it is rectangular it's cavernous. You can also open it out on your bunk to act as a bunk cover in hot weather.

    Amazingly versatile bag:

    - four adjustable layers
    - red
    - rectangle (not mummy) 

    Official Product Web Site:
    https://www.capewild.com/?product=volvo-ocean-race-sleeping-bag