There are numerous lanes and parks in the area, and when the tide is low, you can walk next to the shore along a rocky stretch. At this part, mudskippers are most numerous, and you'll probably spy a few hundred in along 100 meters.
At low tide, after a week without rain, it's quite possible to hike through the trees, but most of the time it's either submerged or deeply muddy. I've seen people up past the knees doing ecological work here. At least that's what I hope they were doing.
Again, this part isn't easily accessable on days after rain. I really like this spot, there isn't any graphiti or garbage, and it seems like nobody comes here. Of course, just above, a hundred cars pass by a minute for most of the day.
On the south side of the bridge is a beautiful, lush sea of mangroves. This is all slightly underwater and can't be easily walked through. You can only look at it from above.
The mangrove forest runs along for a few hundred meters, before the river splits off in two directions, leading to supermarkets, apartments, and convenience stores.
Officially, the "park" includes both sides of the river, but the forest on the north side is sparce, just a few meters deep. Still, from this side, Naha looks like a visually attractive city. The shallows in the river here attract lots of herons and other birds, which can comfortably feed in that depth.
Naha is short on memorable architecture, but this bridge stands out. It's a nice clean structure, and the size of it allows it to be taken in at mumerous angles for different effects.
Crossing the bridge, we can take a slower look at the shallow areas, and follow the river a bit further. There are numerous bridges, at least every kilometer, and even past the final bridge, the view is obscured by a shipping port.
Here, along the bridge, is some nice work in tribute to the natural life here, the underwater life on the left, birds on the right.
I generally find Naha an ugly city. I love it in a lot of ways, but it is poorly preserved, and poorly designed, but from here, everything looks all right.