Waterfront properties in general need a lot more maintenance and tend to wear a lot faster. There is also the risk of storms and erosion to think about. Make sure though when you purchase, that the property has guaranteed water access. Or you might end up having to travel a ways to get to the water.
Waterfront properties are, very often, the envy of those who don't own one. Why? Because just imagining the picture of a warm waking up in the morning and having in front clear waters, the sound of birds and of course a cozy home sounds like heaven on earth. But heaven can be closer than you can imagine.