Returned from BDA yesterday after a quick two-day trip to escape the snow. Always a nice, refreshing holiday, however brief. Marsh should be fine, you'll have a bit of rain, but the weather will be high 70's to mid 80's. The water might be a bit cool for the beach, but we swam on Saturday and it was tolerable. Golf is of course ok all year around. The only time I would avoid BDA is hurricane season, as that can create really rough seas and unbearable wind.