From Tyria to Elona and back again?

Probably a stupid question but is it possible? I'm currently playing actively with another player and I don't want to be able to not get back to Lion's Arch after exploring Elona.

Do I just speak to someone to get back to Tyria, maptravel, or is there a quest to complete? I'd just like to be sure so I don't get stuck somewhere!

Thanks~

You won't get stuck.

After doing the quest to get to Kamadan from Lions Arch, when you press your key for the Map you will see a boat in the water near to Kamadan. Click on this boat and it will allow you to travel back to Lions Arch, also to the Battle Isles.

As long as all the chapters are linked, it's just a question of map travel after you've been there for the first time.