Explore the Surprising Cave – the most beautiful cave in Ha long Bay. It is one of the widest grottoes in Ha Long Bay with thousands of stalactites and stalagmites. You will leave the boat and having around 01 hour to explore Sung Sot (Surprising) cave. This least known cave locates on a remote island, which is rare in cave-lake seascape. The compartment in the heart of Sung Sot cave is surrounded by extremely beautiful niches. The outside section has a high ceiling with lots of hangover. In particular, the second compartment suddenly expanded immensely with curved domes printed in streaks of very smooth and smooth hats, wholly over the head like a large, wide theater. This is the hugest and most beautiful cave in Ha Long bay, locates in core area of heritage site.

The boat will move to Hang Luon (three tunnels) area, a water cave for kayaking, rowing bamboo boat or just stay on board for relaxing and the boar will slowly moving around to sightseeing more on the bay. You will discover the area’s tranquility by kayaking - an indispensable water activity in Ha Long, for those who love challenging themselves or sitting on bamboo boat (Sampan), for those who love being gentle and sophisticated, to admire breathtaking scenes. This is moment you get closer to Ha Long’s nature. if you do not join any above activities, you could stay on sundeck for relaxing

Visit Titov island: -Swimming on the beach. -Trekking Titov's peak for taking photos of panoramic view of the bay.