I can bring guitars and other hand luggage. (Backpack) + labtop at the same time or not.
On the plane trying to call no one selected. up. but is crap.
Your question is broad. You asked about traveling by air. If you have only 20 kg of guitar you have problems. To a large hand luggage. You are good for airlines. If your question refers to a boat trip. No Problem. You can spend more time if. op Travel's tour bus. No problem. But guitars will collect luggage. If travel occurs camp. Ask your scout leader. That about what I can add. Tel body flight. Cheers. From DOWNUNDER.
Crumpler Bags’ New Rolling Photo Luggage/Backpack at PMA2008