Kaijinmaru

Kaijinmaru is the ship whom Gon, Leorio and Kurapika board during their way to Dole in the original anime version of Hunter x Hunter.

Hunter Exam Arc
When Gon and Leorio met for the first time in Whale Island they have the same goal on to becoming a Hunters by attending the Hunter Exam but they need to aboard the ship called Kaijinmaru owned by The Captain and its crew in order for them to proceed through their next destination. The ship was about to leave Whale Island heading to Dole, Gon and Leorio manage to find a way to aboard the ship.

Aboard the ship Gon, Leorio and Kurapika survived the typhoon, Leorio and Kurapika were mad at each other so they decided to step outside and settle things by dueling, but due to the lightning that structs the main mast of Kaijinmaru a guy named Katzo was thrown out while fixing the ship. Kurapika and Leorio tried to save Katzo but failed, Gon suddenly jump out from the ship and catches Katzo as Kurapika held Gon, Leorio grab Kurapika for them to be saved from the angry ocean.

The three arrived at Dole even though the ship was wrecked cause by the storm.

Trivia

 * In the manga and the 2011 anime version of HxH the ship was never name, however in Episode 2 of the original anime version Leorio told Gon that the name of the ship heading towards Dole and the one he needed to ride was called "Kaijinmaru"