SeaMemo
SeaMemo guides: sea miles, logbooks and life aboard
Everything about proving sea miles for the RYA, German and Austrian licences and the Swiss offshore licence, plus logbooks, charter handover, seasickness and a photo book of your trip. Clearly explained, with the direct route to doing it.
Sea miles certificate: requirements and contents
What a valid sea miles certificate must contain, who may sign it and how to create it automatically.
Read the guide →GermanyProving 300 sea miles for the SKS
How to collect and prove the miles you need for the German coastal skipper licence, without paperwork chaos.
Read the guide →GermanyProving sea miles for the SSS
German offshore licence: which miles count, how to document them and what the exam board wants to see.
Read the guide →AustriaSea miles for FB2, FB3 and FB4
The Austrian certificates of competence and their mileage requirements, including the automatic form export.
Read the guide →SwitzerlandSwiss offshore licence: logging sea miles
1,000 miles for the Swiss offshore licence: requirements, the official sea time booklet and clean records.
Read the guide →RYALog sea miles for RYA Yachtmaster & Day Skipper
The miles, sea time, night hours and qualifying passages for Coastal, Offshore and Ocean, and how to prove them.
Read the guide →BasicsHow long is a nautical mile?
1 nm = 1.852 km = 1.151 miles. Converter, conversion chart, nautical mile vs mile, symbols, and which miles count for your licence.
Read the guide →BasicsKnots to mph and km/h
Formula, converter and chart for knots, mph, km/h and m/s. Plus passage time, hull speed and the Beaufort scale.
Read the guide →PracticeMile building trips
How a mile building trip works, what to check when booking and how to document every mile properly.
Read the guide →App comparisonThe best sailing logbook apps in 2026
SeaMemo, Logbook, SailTies, SeaPeople, Skipper, Nebo and noforeignland compared: prices, platforms, features and which app fits how you sail.
Read the guide →App comparisonSeaMemo vs SeaPeople compared
A crew logbook with sea miles records, or a community with weather and live tracking: features, prices and languages of both apps.
Read the guide →LogbookHow to keep a sailing logbook
What to record, whether paper or an app makes more sense, the RYA logbook explained, plus a simple template to start with.
Read the guide →PracticeDocumenting a sailing trip
From the crew list to the trip report: what to record, for memories and for proof.
Read the guide →CharterCharter boat handover checklist
16 areas from hull to ship's papers, the usual disputes and the right order, so your deposit stays safe.
Read the guide →PracticeSailing packing list
Documents, clothing, gear and first aid for a week of charter, plus what is better left at home.
Read the guide →PracticeThe 7 essential sailing knots
Bowline, figure eight, clove hitch, reef knot, sheet bend, round turn and cleat hitch: what each is for and how to tie it.
Read the guide →BasicsThe Beaufort scale
Force 0 to 12 in knots, mph and km/h, with a calculator, wave heights and what each force means under sail.
Read the guide →BasicsAnchoring a boat
Pick the spot, work out your scope, set the anchor and check it holds, with a calculator for your swing circle.
Read the guide →BasicsChannel markers and buoys
Red and green channel markers, cardinal marks, special marks and their lights at night, with diagrams and memory aids.
Read the guide →BasicsNautical flags and signal flags
All 26 flags from A to Z with meaning and phonetic word, the distress signal, the courtesy flag and a generator for your boat name.
Read the guide →BasicsDocking a boat
Med mooring stern-to with lazy lines or your anchor, coming alongside, leaving on a spring, prop walk and crew hand signals.
Read the guide →BasicsCOLREGs right of way
Port tack gives way to starboard, windward to leeward, the overtaking vessel keeps clear, sail versus power and fishing boats: the rules with diagrams.
Read the guide →BasicsTacking and gybing
Bow or stern through the wind: tacking and gybing step by step, with the calls, a diagram, accidental gybes, the chicken gybe and common mistakes.
Read the guide →BasicsPort and starboard
Which side is left, easy ways to remember it, why port is red and starboard green, plus bow, stern, windward and leeward.
Read the guide →On boardSeasickness when sailing
What prevents it before the trip, how to behave aboard, what to eat and which remedies exist.
Read the guide →MemoriesHow to make a photo book of your sailing trip
One chapter per leg, three to five pictures a day: structure, picking photos, captions and photo tips for your sailing holiday book.
Read the guide →Missing a topic?
The guides grow with sailors' questions. If a topic is missing, write to us at seamemo@kevin-baur.com. You will find every feature of the app in the features overview.
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Logbook, travel journal and crew in one app. For iPhone and Android, works offline at sea.
