An accessible boardwalk crosses two bridges to viewing decks on the islands. Plan on about 0.2 mile each way. The first island faces the lower falls; continue to the second for the main falls. The optional Island Loop adds an easy half-mile walk over natural ground, which can be muddy or rocky. It’s a real trail, not more boardwalk.
For a photo, work with the width of the falls: frame the separate cascades across the river instead of cropping in on one patch of water. The amount of whitewater changes with river levels, so the scene can look quite different from one visit to the next.