Explore Dark & Bright Cave (Hang Sáng – Hang Tối) by a traditional bamboo boat rowed by local people. This peaceful area of Lan Ha Bay is famous for its stunning limestone mountains rising from emerald water and its quiet natural lagoon hidden behind the cave. As the boat slowly passes through the cave, travelers can admire the spectacular rock formations, lush vegetation, and unique ecosystem of the bay. Once inside the lagoon, visitors will enjoy a tranquil atmosphere surrounded by towering cliffs and calm waters. It is a perfect place to take photos, relax, and experience the untouched beauty of Lan Ha Bay while learning about the local landscape and nature from the guide.

Bạn có thể dùng bản dài hơn như sau (vẫn đúng kiểu viết cho Viator): Cruise through the breathtaking scenery of **Lan Ha Bay**, one of the most beautiful and peaceful areas near Halong Bay. While the cruise sails deeper into the bay, travelers will admire hundreds of dramatic limestone islands rising from the emerald water, creating a magnificent natural landscape. Guests can relax on the spacious sundeck, enjoy the fresh sea breeze, take photos of the stunning karst formations, or simply sit back and appreciate the quiet beauty of the bay. Depending on the schedule, travelers may also have the opportunity to swim in the clear water or join outdoor activities while surrounded by the spectacular scenery of Lan Ha Bay.

17:00 – Swimming or relaxing on the sundeck Guests can enjoy swimming in the calm waters of Lan Ha Bay or relax on the spacious sundeck while admiring the breathtaking sunset over the limestone islands. 17:30 – Sunset party and cooking demonstration Join the sunset party on the sundeck with light snacks, fresh fruit, tea, and drinks while watching the beautiful sunset over the bay. After that, take part in a Vietnamese cooking demonstration where the chef will guide guests on how to prepare a traditional Vietnamese dish. 19:00 – Dinner served on board Enjoy a delicious dinner at the cruise restaurant with a selection of Vietnamese and international dishes in a romantic and elegant atmosphere overlooking the bay. After dinner – Evening activities Guests have free time to relax on the sundeck, try squid fishing with the crew, enjoy spa services (optional), have drinks at the bar, or simply admire the peaceful night view of Lan Ha Bay under the stars.