I've been reading PB Breezer's blog as he sails though North Carolina. I too would like to explore inshore waters of questonable depth. I know having a chart and depth sounder are essential ingredients, but how do you judge how close you can get and still be pretty sure you're not going aground? (especially when under sail). A lot of the interesting shoreline I have to explore is on the lee and our winds are fierce enough to make a grounding difficult to get out of. Any suggestions?