Welcome!
(better late than never eh?)
I've never tried paddle boarding, but I would agree that simply 'being outside' has so many benefits for our general health and well being.
This Article by @steevc is a nicely written introduction for new users
My advice is to take your time, have a wander rounder and see what else there is, as there is a lot to take in.
Always better late than never! If you've never tried it, I promise you're missing out, it's a lot of fun! I would consider myself to have very good balance and yet I manage. Something to look forward to in 2022 maybe?
Thanks for the info, that will definitely come in handy!