Once you finish the exterior of the boat you must work
Karajama, Birmenhaven, Crandor, Entrana, Miscellania. They are all islands. These are only a few islands, and on most islands you will find dungeons, quests, new monsters or a combination RuneScape gold of the three. Now to reach the islands, you have to charter a boat, fly or teleport there. These ways can be a real pain sometimes so to solve every one your problems just sail there!...