Ships are used for water transport/battle.
“Naglfar is the ship made from the fingernails and toenails of those who died outside of battle...Naglfar
“The Egyptian Queen is a boat belonging to the Kane Family. It may only be summoned once a year...Egyptian Queen
“Calypso's Raft is a raft that appears on the island of Ogygia to take away people who Calypso is...Calypso's Raft
“The Pax was a small row boat owned by Camp Jupiter and was also the only working ship in their...Pax