Ha Long Bay, located in Quang Ninh province, is a UNESCO World Heritage Site and one of the most popular tourist destinations in Vietnam. With its stunning limestone karsts and emerald green waters, Ha Long Bay offers a breathtaking natural landscape that is perfect for a spring trip. You can take a cruise around the bay, visit the floating fishing villages, and even go kayaking or swimming in the crystal-clear waters. Don't forget to capture the picturesque sunset over the bay for a truly memorable experience.