Hi, I traveled Southeast Asia one time last year but i've ever traveled Vietnam in Tet holiday. I read and hear about amazing time in Tet holiday of Vietnam so much, so i really want to visit here one time to enjoy it. My question: 1, Where should i want to go in Vietnam during Tet holiday? 2. What are tips to travel in the time? 3, I should book tour to travel or DIY? Thanks alot