What are the boardwalks like?
The boardwalks, built to keep the nearly 7K hikers off the sensitive vegetation, exist in a variety of states: from pristine to non-walkable.
Regardless, these walkways can be tricky. The moisture from the breaking coastal water, the forest floor mud, the rainforest dew, etc. will make almost every step on the boardwalk slippery, so in the least take caution not to loose your footing. Also, many sections have come under a serious state of disrepair and have become rotten so the threat of breaking through is present.
In most cases walking around these extreme rotten sections is possible