@lemondrops777 Lang Son, a hidden gem in northeastern Vietnam, beckons travelers with its stunning natural beauty and rich cultural heritage, offering a paradise of majestic mountains, enchanting caves, and cascading waterfalls that will leave adventurers and nature lovers spellbound; don't miss the awe-inspiring Tam Thanh Cave, the breathtaking vistas from Mau Son Mountain, and the vibrant local markets like Dong Kinh and Ky Lua, where you can immerse yourself in the vibrant local culture and find unique souvenirs, all while surrounded by historical landmarks like the legendary Chi Lang Pass, making Lang Son an authentic Vietnamese destination that will leave you in awe; and don't forget to indulge in the mouthwatering specialty, To He, a delightful traditional Vietnamese candy crafted from glutinous rice powder and shaped into adorable figures, adding a sweet touch to your unforgettable journey.