Good point Shifty - we never visit CGB when there is N swell.
this is where I learned what the swell is the hard way...went to bed in calm seas and woke up in the night going straight up and down...cleaned out my shorts and then as it settled went on this site and learned from the best what the h*** happened
Weather (and any predcited swell) is posted here
https://marine.weather.gov/MapClick.php?zoneid=amz715#.YwEGrXbMJ3jOP-are you bareboating?