You can buy ship tickets to Amaranthe, Amagal or Dorgania at Havaria Port.
Amaranthe is an island which doesn't exist yet but the ticket will allow you to get a chest at the port. As no ships arrive or leave the port all other tickets are useless.
To Amaranthe 2000 gold.
To Amagal 1000 gold.
To Dorgania 1500 gold.