INTRODUCTION

HA LONG BAY
In-depth research has surprised the world scientists about Halong Bay’s rich geological, biological and eco values which today well preserve a great living environment for local people and aqua system. Ha Long Bay is located in the northeastern part of Vietnam and constitutes part of the western bank of Bắc Bộ Gulf, including the sea area of Hạ Long City and Cẩm Phả Town and part of Vân Ðồn island district. 
The area is World Heritage recognized and includes about 1999 islets. It looks like a giant triangle with Ðầu Gỗ Island (in the west), Ba Hầm Lake (in the south) and Cống Tây Island (in the east) as its three angle points.

Viewed from above, Hạ Long Bay looks like an extremely vivid huge drawing. This is a wonderful and skillful masterpiece of natures creation that turns thousands of silent, soulless stone islands into fantastic sculptural and artistic works of various graceful shapes, both familiar and strange to human beings. Thousands of islands emerging uneven in the fanciful waves look strong and magnificent but also mild and vivid. Amidst these islands we feel as if we were astray in a petrified legendary world. There are many names given to islands according to their shapes and forms.

This one looks like somebody heading toward the shore: Hòn Ðầu Người (Human Head Island); that one looks like a dragon hovering above the sea surface: Hòn Rông (Dragon Island); another looks like an old man sitting fishing: Hòn Lã Vọng; some look like big sails struggling amidst the wind to set off for the sea: Hòn Cánh Buồm (Sail Island); then two islands look like a pair of chicken lovingly playing with each other above the sea: Hòn Trống Mái (Male and Female Chicken Island); and amid the vast sea stands an island like a big incense burner like a ritual offering to Heaven: Hòn Lư Hương (Incense Burner Island). All are so real that people are taken aback by them.

Those stone islands have experienced unpredictable changes over time and they take different shapes from different angles of view. Here, we come to realize that they are not just inanimate things but are vivid and soulful.
Hạ Long Bay is also attached to glorious pages of Vietnamese history, with famous sites such as Vân Ðồn, a bustling trade port in the 12th century, charming Bài Thơ Mountain, and not very far away from here is the Bạch Đằng River which witnessed two famous naval battles of the Viêt’s ancestors against invaders. Also, Hạ Long is one of the cradles of human kind with the glorious Hạ Long culture in the late Neolithic age, discovered at such archeological sites as Ðộng Mang, Xích Thổ, Soi Nhụ and Thoi Giếng.

Hạ Long is also home to great biodiversity with typical eco-systems like mangrove forest, coral and tropical forest. It is also home to thousands of plants and animals of numerous species, for example shrimp, fish and squid. Some species are particularly rare and can be found no where else.
With all this in mind, the 18th meeting of the Committee of the World Heritages of UNESCO (in Thailand on December 17th, 1994), officially recognized Halong Bay as a Natural Heritage Site of Worldwide Importance.

Dau Go Grotto (Driftwood Grotto)

Dau Go Grotto is found on Driftwood Island, formerly known as Canh Doc Island. The name Driftwood Grotto comes from the popular story of the resistance war against the Nguyen Mong aggressors. In a decisive battle, Tran Hung Dao was given an order to prepare many ironwood stakes to be planted on the riverbed of the Bach Dang River. The remaining wooden pieces were found in the grotto and, as a result, the grotto was given its present name. The entrance is reached via 90 steps up the island. The grotto is divided into three main parts. In the first chamber, many forms can be seen in the rock, depending on the imagination of the observer. In the middle of the chamber, on the top of the pillar, there appears to be a monk draped in a long, dark cloak, with his right hand clasping a cane. Moving into the second chamber, visitors pass through a narrow "door", naturally formed through erosion. The light here is mysterious, and new images appear in the stone. At the end of the grotto is a well of clear water surrounded by four ancient walls.

In this grotto, there remains an engraved stone stele singing the praises of Halong Bay ordered by Emperor Khai Dinh when he came to visit the grotto in 1917. Dau Go is 40 minutes from Bai Chay. Admission is 15,000 VND per person, 5,000 VND for children under 15, and children under 6 are free.

Trinh Nu (Virgin) Grotto-Trong (Male) Grotto
The Virgin Grotto is situated in the island range of Bo Hon, in the system comprised of the Surprise Grotto, Dong Tien Lake, and Luon Grotto. The grotto is 15 km south of Bai Chay Beach. For some fishermen, the Virgin Grotto is home, while for young lovers it is a popular romantic rendezvous site.
According to legend, there once was a beautiful fisherman's daughter, whose family was so poor that they were in service of the rich administrator of the fishing zone, who forced the family to give him their daughter as a concubine. However, the fisherman’s daughter already had a lover and refused to marry the administrator. The administrator got angry and exiled her to a wild island where she suffered from hunger and exhaustion. One frightful night she turned to stone. On this same night, her lover, knowing of her danger, rowed his boat in search of her. However, a tempest destroyed his boat, and he floated to a nearby island. In a flash of lightening, he saw his lover in the distance, but his calls were driven away by the wind. In his final exhaustion, he also turned to stone (today’s Male Grotto).
When visiting the Virgin Grotto, you can still see the petrified girl with her long hair hanging down and eyes looking towards the mainland. Opposite the Virgin Grotto, the Male Grotto is still home to the lover whose his face is turned towards his mate. At times, his passionate calls and blows against the walls of the grotto can still be heard.

Thien Cung (Heavenly Palace) Grotto This recently discovered grotto is one of the most beautiful in Halong Bay. Thien Cung is situated on the southwest side of the bay, 4 km from the wharf outside of Halong City.  It is located in a small range of islands that resemble a throne embracing two superb grottoes at its core. The way to Thien Cung is perilous, covered on both sides by thick forest.      After entering a narrow gate, the magnificent, 130 m long grotto opens up.  According to legend, a beautiful young lady named May (cloud) caught the eye of the Dragon Prince and he fell in love with her. They were betrothed and got married in the very center of the grotto. All of the scenes of their wedding, which lasted for seven days and seven nights, have been seemingly fossilized in the grotto.

In the center, there are four large pillars supporting the "roof of heaven". From the base to the top, many strange images seem to exist in the stone, including birds, fish, flowers and even scenes of human life. On the north wall of the grotto, a group of fairies seems to be singing and dancing in honor of the wedding. Under the immeasurably high roof, stalactites form a natural stone curtain. There is also the sound of a beating drum made by the wind blowing through the stone.
In the last chamber of the grotto, a natural gushing stream of water babbles throughout the year. Here there are three small ponds of clear water. One path meanders out of the grotto.

Quang Hanh Grotto
Located 9 km west of Cam Pha, Quang Hanh Grotto is the longest grotto in Halong Bay. It is 1,300 m long, and stretches throughout the stone mountain of Quang Hanh. The French named it "Le Tunnel," or Tunnel Grotto.
Quang Hanh Grotto is accessible by either boat or car, but the entrance only appears when the tide is out. Ba Co Shrine (shrine of three girls) is in the grotto beside a smooth stone block. Legend tells that three girls, who were once journeying on the sea, came to the grotto to take shelter from the rain. They were so engrossed with the beauty of the grotto, that they did not notice the rising tide. They drowned, only to become water goddesses.
Quang Hanh Grotto is extremely beautiful. A small boat will take you through the stone passageway by flashlight, casting magical colors on the hanging stalactites

Bai Chay Bai Chay is a resort located along the coast of Halong Bay. This is a windward ocean resort which has a year round average temperature of 20oC (68oF). Bai Chay is a low gently sloping range of hills that runs along the sea for more than 2 km. Blended in among the pine trees are large hotels and small villas with distinguished architectural styles. Traveling down the asphalt road along the coast, visitors see long white stretches of sand and green rows of Casuarina trees, tucked under which are small family-run restaurants. After swimming at the beach, tourists can enjoy cold drinks and cool off in the breeze that sweeps in from the sea. Bai Tho Mountain ( Poem Mountain) Bai Tho Mountain is 106 m high. It runs along the coast, half on land and half in the sea. Sailing in the bay, one or two hundred meters from the mountain, one can see a poem carved on a flat stone cliff.

In 1468, Emperor Le Thanh Tong, who was also a poet, made an inspection tour of the North-East region. He stopped at the foot of the mountain, and inspired by the magnificent beauty of his surroundings, he wrote a poem. Later, he had the poem engraved on the wall of the mountain. It is very interesting to climb the mountain and enjoy the panoramic view of the bay.