A good rubber soled Simms boot is good. Another option are the Korkers' boots. I have a pair of the Korkers. I can hike miles and miles in them and they are comfy. The korkers have changeable soles, so you pop on the rubber ones and start hiking. Get to the water and throw on the felt or rubber with studs soles.
One thing that I have noticed though, the korkers rubber soles tend to ear down quite quickly and if they are left out in the sun for even a minimal amount of time, they crack quite quickly. But replacement soles are like $35 so, you can replace them quite cheaply if needs be.
As for the simms, I would go with: either the Rivertekboa, the Rivershed, or the Guide boot. Any of those in Rubber sole. You can add studs to it if needs be for better traction.
I like the simms boots because they are a real boot, like the ones I grew up with mountaineering and climbing. Great ankle support, sturdy sole, lace-up with the exception of the Boa boot.
Take care!
-Spydey