Shoal Keel and blue water?
You can sail where ever you want with a shoal draft vessel, just be aware of her strengths and weak areas. She will not beat off a lee shore well, be warned in advance. She will get you into a shoal water pass with some ease of mind unlike a deep fin keel. As for off shore, I sail a 33'' boat with a 4''3" keel and we sail from Charlotte Harbor to Key West with no problems (112 NM from sea bouy to sea bouy). If the wind is anywhere away from a beat she will do fine, in a beat we use a very solid iron genoa with a great three bladed prop. Hell, there is a kayak race from Tampa to Key Largo, any boat can make it, the question is the crew.