For ending a long shanty singalong, "Leave Her, Johnny, Leave Her" always has a haunting effect on me."Rolling Down to Old Maui" is a wonderful song to sing as you're lowering your sails and stearing into harbor.
Almost any sea song conjures images of home, love, endurance, courage, lonliness. As a newer song, "The Bergen" by Jez Lowe is a wonderfully crafted song and melody.
Rich