IIRC it’s a non-atar subject?
I did a slightly modified version of it in year 9 (it was based on the 11-12 syllabus)
I found it super interesting, and defs has practical applications in the world.
I guess it depends on your goals/wants out of it.
I learnt a lot about boat licensing and rules around that, types of waves, first aid, marine fish
I learnt more but I forgot it now lol
I still remember all my cardinal markers though!