If you're fascinated by ancient history, Hue's imperial citadel should be at the top of your Vietnam itinerary. Instead of worrying about advance planning, join a full-day tour from Hoi An, which is the perfect choice for first-time visitors with limited time. You'll travel along the world-famous Hai Van Pass, have time to relax at Lang Co Beach, and benefit from the insider knowledge of a guide as you explore Hue's UNESCO-listed citadel.