For a less crowded alternative to Halong Bay, consider visiting Bai Tu Long Bay. Located in the same region, Bai Tu Long Bay offers similar natural beauty but with fewer tourists. Take a boat tour with your friends and explore the pristine beaches, hidden caves, and limestone islands. Enjoy swimming in the crystal-clear waters, snorkeling to discover the vibrant marine life, and camping on the secluded beaches. Bai Tu Long Bay provides a tranquil and picturesque setting for a memorable friends trip.