Yup; here into playing a bit with outdoor cams. Initially it was analog and lately its been IP HD.
I have set up a location for a facing the water POE HD IP cam and still leary about installing it outside. The last bit of weather took down the oldest palm tree and wrecked the pool lanai. Such that I am not into wanting to climb a ladder to do anything with it; so rethinking best mounting position. That noted I did install a cheap weather station and the weather hasn't damaged it yet.
Over the years (well since the 1980's) the salt air has wrecked havoc with anything with a bit of metal to it. The wind / salt air would just cover the lens with stuff and make the view piss poor anyways in a matter of a few weeks.
In the early 2000's we rented a house (it was way too big for us two at some 9000 sf of living space) on the water in St. Croix. It was literally on the water and a nice view. It was more of a party house. That said the salt spray would trash my glasses in less than a few minutes. Every morning we did wake up to seeing sea life in the swimming pool. The text description of the house used the ocean air as a cooling breeze. The house had no AC and that and the constant salt spray made it very low on the WAF; but the view was very nice. The electric was always going out and noticed the neighboring houses all had been using wind to supplement their electric at the time. Do recall that the island was given about a milion dollars to fix up Point Udall for the 2000 celebrations and the money walked; no one ever did find out where it went. That said I was memorized by the SETI station there and saw the dish move one early morning visit around sunrise.
That in mind you can as mentioned above go with a cheap camera which you care nothing about and play with it. You can take the Foscam and put it in a clear cover hanging it upside down. There are a few Foscam users out there that have done that. I was using my PTZ Foscam in the garage and just removed it as its been locking up by itself after a couple of years. I did replace it with a stationary Grandstream but replacing it again with another one with a wide lens on it; IE: 2.1mm. I did also find one with a fisheye 180 view lens which I may try next. I have been modding some test stuff with IP67 outdoor domes. These do work very well outside. One with a fish eye lens and no IR illumination would probably work fine for you. (that and I would put it somewhere where you can easily clean the dome).
Over on the Ubiquiti forum there are a number of users that have installed Aircams on beach rental property on the water. Have a look there for some ideas about dealing with environment. Some have modded the cams with various lens set ups.
In the midwest initially started with an Optex combo analog camera. Very well built it has "weathered" some 10 years of cold and hot weather. It is not a PTZ camera, rather similiar very modular.
I did find that the simple Ubiquiti aircam did fine outside with 75 mile per hour winds that took down my oldest tree a couple of years ago and just recently had a freak winter storm with 50 plus MPH winds that did nothing to the Grandstream HD IP camera. Both of these are stationary cams. One is mounted very high and I can still see the view but the lens is started to get dirty a bit. The Grandstream is lower at some 10 feet up and the lens is still pretty clear.