
Underwater Magic and Glass-Bottom Adventures
The defining experience of Vinh Hy is its vibrant marine life. Because the bay is part of the Nui Chua World Biosphere Reserve, its coral reefs are among the healthiest in the country, boasting over 300 species. For those who prefer to stay dry, the iconic Glass-Bottom Boat Tour is a must. You can peer through the transparent floor to see a "natural aquarium" of waving sea fans and colorful tropical fish. For adventurers, jumping into the jade-colored water for a snorkeling or scuba diving session offers a visceral connection to the ocean. The water is so clear that visibility often reaches the sea floor, making every dive an immersive journey into a silent, liquid wonderland.
Exploring the Ancient Beauty of Hang Rai and Nui Chua

Beyond the shoreline, Vinh Hy is surrounded by geological wonders. Hang Rai (Otter Cave) is a prehistoric coral reef that has risen above the sea, forming a jagged, otherworldly landscape of rock pools and "stone waterfalls" when waves crash over the formations. It is a photographer's dream, especially at sunrise. Surrounding the bay is Nui Chua National Park, the only dry forest ecosystem in Vietnam. Hiking through its trails leads you to hidden streams like Suoi Lo O and panoramic viewpoints over Dolphin Cape (Mui Ca Heo). This combination of "forest and sea" allows you to trek through wild jungles in the morning and relax on a private white-sand beach by the afternoon.
Pro-Traveler Experience Tips
To experience Vinh Hy like a local pro in 2026, you must plan around the unique climate of Ninh Thuan. The "Perfect Season" is from April to August, when the sea is calmest and the water is at its most brilliant turquoise. Avoid October to December, as the region experiences heavy rains and rough seas that can cancel boat trips. A mandatory tip for the budget-conscious: skip the expensive hotel breakfast and head to the Vinh Hy Fishing Village market at 6:30 AM. You can find "Banh Can" (mini pancakes) and "Banh Xeo" with fresh squid for just 30,000 VND ($1.20 USD). Regarding the bay tours, a private glass-bottom boat rental for a group starts at approximately 1,300,000 VND ($52.00 USD), while a shared seat is about 150,000 to 200,000 VND ($6.00 - $8.00 USD). If you want a more exclusive experience, ask your boat captain to drop you at Bai Hom (Turtle Beach) for the afternoon; it is often completely empty and offers excellent shore snorkeling. For transportation within the area, renting a motorbike is essential as the scenic DT702 coastal road is one of the most beautiful in the world, but be prepared for high winds—always wear a secure helmet. Rental costs are roughly 150,000 VND ($6.00 USD) per day. Finally, if you are visiting the nearby vineyards (like Ba Moi or An Thai), the entry is usually free, but it is polite to buy a bottle of grape wine or syrup, which costs around 100,000 VND ($4.00 USD). Remember that Vinh Hy is a biosphere reserve—be a responsible traveler by using reef-safe sunscreen and never touching the coral.