10 years ago, I stripped down all the woodwork, bulwarks, mast and spars included, then coated with 4 coats of Sikkens Cetol Marine, the previous name for International Woodskin.
Since then, the boat has been on a mooring, exposed to the weather for at least 6 months each year but it has not been necessary to strip the wood back again.
In general, a light sanding and touchup where required, has kept all looking fine.
The only item varnished is the tiller and the sole reason for doing that is to congratulate myself there is nothing else to do.
You will not be disappointed, enjoy.