I sure hope this boat doesn't sink

Earlier today Neil, Rebecca, and I took the ferry over to Dartmouth. While on the ferry we noticed a sign that none of us knew how to properly interpret. People within people, surrounded by people, and running people in arrows didn't immediately scream anything in particular to any of us. The only clue that it had anything to do with safety is that it was near the life boat structure. Hopefully the boat doesn't go down and force people to try to interpret the sign in an emergency.