Bo Hon Island: The Home to Majestic Caves in Halong Bay

Bo Hon Island, along with Sung Sot Cave and Luon Cave, is no longer strange tourism sites in Halong Bay. It can be said that 8 in every 10 cruises in Halong Bay have Bo Hon Island in the itineraries. This island is considered as a miniature Halong with splendid caves, pristine nature and charming scenery. Whenever you have an opportunity to visit Halong Bay, don’t miss a journey to discover wonderful things on Bo Hon Island.

I. Highlights of Bo Hon Island

Bo Hon Island is about 14 kilometers from Bai Chay Wharf, which is included in the tourism core area of Halong Bay, along with Ti Top Island and Me Cung Cave. This island was discovered in the beginning of the 20th century, but it was not until Halong Bay was recognized as a world heritage that Bo Hon Island became more popular among tourists. The values of Bo Hon Island consist of the geological values and the biodiversity of the ecosystem there.

With an area of nearly 3.8 square kilometers, it is the home of the most magnificent caves and grottos in Halong Bay. Sung Sot Cave, Luon Cave, Trong Cave, Trinh Nu Cave and Dong Tien Lake are all the well-known spots on this island.

These caves were formed by the effects of sea water, winds and rain for millions of years, and the karst topography of Bo Hon Island is a matter of concern for many scientists. Inside these caves, a system of stalagmites and stalactites in various shapes and sizes adorns the sparkling and mysterious appearance of the world behind the limestone walls of Bo Hon Island.

When it comes to biodiversity, Bo Hon Island is the habitat of plentiful fauna and flora species. On the imposing limestone cliffs of the island are various kinds of plants, most of which are grass, bushes, and vines. This area is also the home for some kinds of birds and golden-haired monkeys; these animals are all the rare and precious species that need protecting.

Besides, the water environment around Bo Hon Island is a world of colorful fish and other sea creatures, which contributes to the diversity of the ecosystem on it.

II. What to See and Do on Bo Hon Island?

1. Sung Sot Cave

Sung Sot Cave is the largest cave in Halong Bay, perched 25m above sea level. After climbing 100 stone steps, you’ll discover a massive 12,000-square-meter cave split into three chambers. Inside, you’ll find fascinating stone formations, including shapes resembling a horse and sword. The final chamber opens up to a beautiful royal garden with a serene lake.

2. Luon Cave

Unlike other caves, Luon Cave offers a unique tunnel-shaped experience at the mountain’s base. You can only reach it by kayak or small boat through its 100-meter long arch. The cave opens up to a peaceful lake surrounded by towering cliffs, creating perfect photo opportunities and a tranquil escape from the busy world.

3. Trong and Trinh Nu Caves

These twin caves tell a touching love story through their stone formations. Local legend speaks of two lovers turned to stone, with one cave showing a long-haired girl gazing out to sea. The caves offer stunning views and are popular spots for photographers and romantic souls alike.

4. Dong Tien Lake and Cave

This pristine site remains largely untouched by tourism, preserving its natural beauty. While access is limited mainly to researchers, it features a unique three-chamber cave system leading to a small lake. The area is particularly valuable for its undisturbed ecosystem and scientific significance.

III. Best Time to Visit

The tourism activities in Halong Bay often take place during summer time from April to June and late autumn from September to November. The weather conditions in Halong Bay during these times are quite favorable for your exploring activities. If you are excited about the atmosphere of the tourism season, these periods are the best time to visit the island in particular and Halong Bay in general.

For budget travelers, July and August offer lower prices, though this period is also the rainy season. While storms are possible, there are still clear days perfect for exploration. Regardless of the season, checking the weather forecast is essential before planning your trip.

► Also read: A local guide on best time to travel to Halong Bay, Vietnam

IV. How to Get to Bo Hon Island?

Bo Hon Island is a common stop on Halong Bay cruises. From Bai Chay Tourist Wharf, you can take Cruise No. 02, which visits many famous caves. The tour also includes other highlights like Me Cung Cave and Ti Top Island.

Moreover, the night tour in Halong Bay is the selection of many tourists who want to explore more interesting things in this destination. If you have time, an overnight tour on a cruise that lasts 2 days and 2 nights is the best suggestion for you.  

V. Extra Tips

• Coming to Bo Hon Island, besides visiting some highlight spots, you can enjoy other activities such as kayaking, swimming, climbing mountains, sightseeing and taking photos.
• Though Bo Hon Island is one of the most popular destinations in Halong Bay, some services such as accomodation and restaurant have not developed to protect the environment there.
• If you have a chance, don’t miss a night tour in Halong Bay, when you can experience fishing activity and admire the scenery of Halong at sunrise and sunset.
• Book your hotel and cruise in advance in case you make a plan to visit Halong Bay during tourism season.
• Prepare all your necessary things before the journey, including a hat, sunscreen, sunglasses and swimsuit. Comfortable clothes are better for moving.
• Remember to protect the environment, preserve the cave system and biodiversity of Bo Hon Island.

With a system of majestic caves and diverse plants and animals, Bo Hon Island is one of the most outstanding landscapes in Halong Bay. This wonderful island has all the specific features of a world heritage with the vital values in terms of geology and biology. If you don’t have enough time to visit the whole Halong Bay, a trip to island will show you a miniature heritage within a day.