You can only get on the Royal Unova (the dock in front of the Pokemon center) and the boat to Liberty Gardeb. The boat to Liberty Garden requires the Liberty Pass, a key item distributed in an event.
go to jubilife city and surf across the fishing place to get to canalave city then youll see a sailor with the boat
you have to have beaten all of the gym leaders and elite 4. then get the ss aqua ticket from prof elm. you'll be able to ride the ship on Sundays and wednesdays.
after you beat the elite 4 go to prof. elms lab and he will give you a ticket. the first time you get on the boat you can go any time. see link below for days and times.
you have to beat the gyms in johto and get it from profeser elm also when you go to the port aid will be there and will give you the natinal upgrade
she's in the captains room, so go up the stairs next to the engine and then enter the room and she's stood with the captain
you go to the harbor and take a boat to the hoenn region
Well, I am currently on it, and I am going to guess either you do everything on board or about 10 minutes, if not than more. It is one or the other I guess.
SOulsilver
A Pokemon from a Diamond, Pearl, Platinum, Heartgold, or Soulsilver event.
a event
after beating the elite four. the boat to the next region will dock there.
you can get on the boat in olvine city which takes you to the Kanto region
After beating Elite 4, take boat from Olivine City.
Defeat the Elite four and catch the boat from Olivine to Vermillion
you go to the harbor and take a boat to the hoenn region
after you get all 8 badges in johto, surf east(right) of new bark town once you defeat lance the champion, talk to elm to get the ticket for the boat in the olivine port, then board the boat
after u defeat Pokemon lege u get ticket then fly to olivine then take the boat 2 kanto
Beat the elite four. Professor Elm, I think, someone, will give you the boat pass for the harbor in Olivine, which will take you to Kanto
Simple. First Defeat the Pokemon league, then talk to professer elm. Then go to Olivine to ride the ferry boat to Kanto. Then go!
you get a ticket on the s.s. boat to veridian city then you have to beat all 6 kanto gym leaders Then face RED (ash)
Once you've beaten the Elite Four of the Johto region, you go to.......Olivine City and take the boat on Tuesdays and Sundays I think......Or just some time of the week. The boat will take you to the Kanto region, and there your other journey unfolds!
get to the kanto region and find a boat at cinnabar island go to i think one island and then follow the path to mt. ember then at the end moltres will be waiting for you!