I recently went to Plas Menai for a weekend course. Highly recommended for anyone with any kind of aquatic interests.
Having started to learn Cymraeg, I now have the prospect of learning another language (boat jargon) at the same time. However, someone there mentioned that Welsh boat jargon is actually much more straightforward than the English equivalent, because much of the English terminology (e.g. leeward) dates back to before the Great Vowel Shift, which doesn’t apply to Cymraeg.
Are there any good books or websites that cater specifically to Welsh boating terms?