Beaches are my favourite subject too. There is so much scope for photographers.
Try a wide angle lens, and a very low viewpoint, preferably with an interesting feature in the foreground; like a sand pattern or a boulder or some seaweed.
Slow shutter speeds and a tripod in its lowest position. I have one of those Mantrotto's that has special knobs that make the tripod legs go almost horizontal. Works a treat!
I own an X700 (and even older Minolta's that I have had for 24 years) too, and use it when I want to shoot Scala slides......... on the beach. :-)
Good luck and let us see some pictures!