yeah travelling is bcz when you travel you communicate with people and you learn more by communication.

Yes, I have learnt a lot of things by travelling that I could not have learnt from books or the internet.

In isolation, I don't think it is. You can visit a new place, but without some knowledge of what you are looking at, the benefits will be small and fleeting. Certainly, it can be invaluable as part of a well-rounded education, but without complementary teaching, it will be wasted as a learning experience.

I think most people learn best by doing.

I agree.