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Nautical Know How
  • Our Courses

      All our courses are engaging, interactive and fun! Whether formal training or simply looking to brush up, we take online learning to the next level.

      • Sailing EssentialsFreeA free course great for anyone who spends time on the water.
      • Essential Navigation & SeamanshipRYA course for beginners. Learn charts, tides, pilotage, and core seamanship with simple practice tasks.
      • Day Skipper TheoryMost PopularRYA course for inshore skippers. Plan day passages using chartwork, tides, weather, and COLREGs.
      • Coastal Skipper / Yachtmaster® TheoryComing SoonRYA course for advanced navigation and passage planning. Work with secondary ports, tidal streams, and offshore weather.
      • SRC (VHF) Marine Radio CourseRYA Short Range Certificate radio course. Study online, then take the practical exam with an RYA assessor.
  • Directory

      Are you looking for something nautical related? Our directory is an extensive list of courses and places associated with the marine industry. Hop over and search now.

      • Places
        Find anywhere nautical, including marinas & training centres. If it exists, we’ve got it listed!
      • Courses
        We help you navigate through the complex world of training and help find what’s best for you.
  • Know-How

      We believe every day’s a school day on a boat! That’s why we built Nautical Know-How, dedicated to answering your questions. Even better, if it can’t answer your question immediately, you can request it, and we’ll add it to our knowledge base.

      • Nautical Terms & Terminology
        Understanding the language of the marine world is like trying to learn a pirate’s secret code while juggling fish. Let us explain why a sheet isn’t for your bed, why “heave ho” doesn’t mean throw up (most of the time), and why “dead reckoning” is surprisingly less ominous than it sounds.
      • Why do we have tides?
        Have you ever wondered what causes the tides? Check out this video, which introduces the forces that create the tides we experience on Earth.
      • What causes our weather?
        A video introducing the drivers behind our weather, part of our RYA Day Skipper & RYA Coastal Skipper / Yachtmaster® Offshore theory courses.
      • Buoyage Flashcards
        Flashcards designed to help remember the buoys in the IALA system. If you want to learn them in detail, our module ‘Getting in and out of harbour‘, covers the IALA system and different buoys used.
      • Interactive Rule Book (COLREGs / IRPCS)
        Whether you’re a novice sailor or a seasoned skipper, we can help you navigate the IRPCS confidently and clearly. Our easy-to-use, easy-to-understand, plain English rule book with helpful interpretations of what each rule means.
      • The Salty Sea Blog
        From salty old sea dogs to fresh-faced deckhands, this blog is for anyone who finds peace, adventure, and a bit of mischief on the water. So hoist the main, set your course, and let’s sail into the stories, lessons, and musings that make life on the sea so irresistible.
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Nautical Know How
  • Our Courses

      All our courses are engaging, interactive and fun! Whether formal training or simply looking to brush up, we take online learning to the next level.

      • Sailing EssentialsFreeA free course great for anyone who spends time on the water.
      • Essential Navigation & SeamanshipRYA course for beginners. Learn charts, tides, pilotage, and core seamanship with simple practice tasks.
      • Day Skipper TheoryMost PopularRYA course for inshore skippers. Plan day passages using chartwork, tides, weather, and COLREGs.
      • Coastal Skipper / Yachtmaster® TheoryComing SoonRYA course for advanced navigation and passage planning. Work with secondary ports, tidal streams, and offshore weather.
      • SRC (VHF) Marine Radio CourseRYA Short Range Certificate radio course. Study online, then take the practical exam with an RYA assessor.
  • Directory

      Are you looking for something nautical related? Our directory is an extensive list of courses and places associated with the marine industry. Hop over and search now.

      • Places
        Find anywhere nautical, including marinas & training centres. If it exists, we’ve got it listed!
      • Courses
        We help you navigate through the complex world of training and help find what’s best for you.
  • Know-How

      We believe every day’s a school day on a boat! That’s why we built Nautical Know-How, dedicated to answering your questions. Even better, if it can’t answer your question immediately, you can request it, and we’ll add it to our knowledge base.

      • Nautical Terms & Terminology
        Understanding the language of the marine world is like trying to learn a pirate’s secret code while juggling fish. Let us explain why a sheet isn’t for your bed, why “heave ho” doesn’t mean throw up (most of the time), and why “dead reckoning” is surprisingly less ominous than it sounds.
      • Why do we have tides?
        Have you ever wondered what causes the tides? Check out this video, which introduces the forces that create the tides we experience on Earth.
      • What causes our weather?
        A video introducing the drivers behind our weather, part of our RYA Day Skipper & RYA Coastal Skipper / Yachtmaster® Offshore theory courses.
      • Buoyage Flashcards
        Flashcards designed to help remember the buoys in the IALA system. If you want to learn them in detail, our module ‘Getting in and out of harbour‘, covers the IALA system and different buoys used.
      • Interactive Rule Book (COLREGs / IRPCS)
        Whether you’re a novice sailor or a seasoned skipper, we can help you navigate the IRPCS confidently and clearly. Our easy-to-use, easy-to-understand, plain English rule book with helpful interpretations of what each rule means.
      • The Salty Sea Blog
        From salty old sea dogs to fresh-faced deckhands, this blog is for anyone who finds peace, adventure, and a bit of mischief on the water. So hoist the main, set your course, and let’s sail into the stories, lessons, and musings that make life on the sea so irresistible.
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Sign In Join now—it’s Free

Glossary Archive

MRCC

A shore-based facility responsible for coordinating and managing maritime search and rescue (SAR) operations within a designated area of responsibility. A Maritime Rescue Coordination Centre (MRCC) is a critical hub in the global maritime safety network, ensuring the effective coordination of search and rescue (SAR) efforts for vessels and individuals in distress at sea. National...


Multihull Club Racing

The RYA Multihull Club Racing course prepares sailors to participate in local club races with confidence. The course covers race rules, starting techniques, and strategies for optimizing boat speed. Participants practice mark rounding, teamwork, and decision-making during race simulations. By the end, sailors will have the knowledge and skills needed to excel in club-level multihull...


Multihull Day Sailing

The RYA Multihull Day Sailing course prepares sailors to undertake safe and enjoyable day trips on multihulls. Participants learn about trip planning, navigation, and handling multihulls in various conditions. Practical sessions cover anchoring, mooring, and responding to weather changes. By the end, participants will feel confident planning and executing day trips independently.


Multihull Level 1 - Start Sailing

The RYA Multihull Level 1 course introduces participants to the basics of sailing multihulls. Participants practice rigging, steering, and sail handling in a safe environment. The course emphasizes safety and confidence-building, providing a strong foundation for further multihull training.


Multihull Level 2 - Basic Skills

The RYA Multihull Level 2 course builds on the skills learned in Level 1, focusing on independent sailing in multihulls. Participants practice advanced maneuvers such as tacking, gybing, and sailing in stronger winds. Safety and navigation basics are reinforced throughout. By the end, sailors will have the confidence to handle multihulls independently in moderate conditions.


Multihull Level 3 - Better Sailing

The RYA Multihull Level 3 course refines sailors’ techniques, focusing on advanced boat handling and performance optimization. Participants practice improving sail trim, mastering boat balance, and executing precise maneuvers in challenging conditions. The course also emphasizes problem-solving and decision-making, preparing sailors for more independent and complex sailing adventures. By the end, participants will feel confident...


Multihull Performance Sailing

The RYA Multihull Performance Sailing course is designed for experienced sailors looking to optimize their skills in high-performance multihulls. Participants learn advanced techniques such as sail trimming, weight distribution, and handling multihulls in strong winds. The course also covers race tactics and safety, helping sailors excel in both recreational and competitive multihull sailing.


Multihull Regional Racing

The RYA Multihull Regional Racing course is tailored for sailors competing at a regional level in multihull events. This advanced program focuses on race tactics, starting sequences, and mark rounding strategies. Participants refine their boat handling under competitive pressure and learn how to adapt tactics to varying conditions. Practical race simulations help build confidence and...


Multihull Sailing With Spinnakers

The RYA Multihull Sailing With Spinnakers course focuses on spinnaker handling in multihulls. Participants learn to rig, hoist, and trim spinnakers while maintaining boat balance and speed. Practical exercises cover gybing, troubleshooting, and optimizing performance in varying conditions. By the end, sailors will feel confident using spinnakers to enhance their multihull sailing experience.


Multihull Seamanship Skills

The RYA Multihull Seamanship Skills course builds essential practical skills for handling multihulls in a variety of conditions. Participants learn advanced techniques such as reefing, heaving-to, and managing emergencies. The course also emphasizes navigation, anchoring, and responding to adverse conditions, making it ideal for sailors aiming to enhance their multihull proficiency.


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