It's really hard to get sea water off your lens once it's been splashed.
I've decided the best way to clean it is to lick it. Yep, lick those salty smears right off before giving it a thorough wipe with lens cleaning fluid. It works, mmm, delicious too.
I'm here to learn so all comments and critique most welcome.
Thanks for looking.
*** I've uploaded a reworked version of this, a few photos on ***