Re: How much wave/swell is too much?
You are getting good advice. One other additional thing to think about is when can a seemingly benign situation get dangerous?
- Swells crossing shallow water will tend to get steeper and break.
- Current running against a wave train can cause it to get a lot steeper.
These situations often combine at shallow harbor entrances with rivers, and they can be hard to see from the ocean side as the break is blocked from view by the swell. We had a boat in the Merrimac River for a number of years, and saw this situation on otherwise beautiful days with a hurricane way offshore.
Deep water, no current, big long period swells are usually pretty safe sailing, as long as your crew doesn't get sea sick.