There is one port and many people said their Kindle's haven't been a problem, which also has.. one port. So how is this any different?!
I’ve taken kindles, iPads, and iPhones to the beach. I’m pretty careful not to cover them in sand, but it’s definitely doable. I care the least what happens to a kindle, since they’re plastic, waterproof and relatively cheap. I found the beach just to be too bright for an iPad. At least for me. Even under an umbrella (because of the brightness of the sand and how it reflects light into my eyes vs the screen…unpleasant). Kindle really is excellent for the beach or lake or whatever type of outdoors you prefer.
The other thing I’ve found is that once I’m in the sun, near the water, all screens lose their appeal for me. I prefer to just enjoy the place, go into the water, laze in the sun.