The port side is not as bad as the starboard side, but there are a few nails that need to come out as well as a few screws that need replacing with new bronze screws.
The starboard side is in need of some serious work as the plank ends are in a poor condition and will need some work to make them good.
Here is a close up photo of the problem, the screws and nails have either broken off in the planks or sub standard one have been fitted and in some cases a mixture of iron nails and brass screws.
An even more close up photo showing the problem
Also some work needed at the other end with a few small cracks in the transom
both on the starboard and port sides.