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9 Safety Tips for Swimming in Halong Bay

Halong Bay is said to be one of the best places to swim in Vietnam with numerous beaches. The bay is not only an ideal place for sunbathing with dazzling sunlight, but also a beautiful beach with calm tides, clean, and green water. It would be even much more enjoyable if you have a chance to swim far away from the beach, maybe diving from a cruise, because the water there is much more clear.

9 Safety Tips for Swimming in Halong Bay

Safety Tips

Swimming in Halong Bay continues to be an unforgettable adventure in 2025. Picture yourself immersing in the clear emerald waters of Halong Bay, encircled by towering limestone formations, soft sandy beaches, and vibrant jungle landscapes. The water remains clean, calm, and inviting, making it hard to resist taking a refreshing dive as you cruise around this stunning bay.

To ensure a safe swimming experience in Halong Bay, please adhere to the following safety guidelines:

  • Avoid swimming alone. It is advisable to swim in groups to ensure that help is at hand in case of an emergency.
  • Steer clear of areas with strong currents.
  • Be aware of your swimming capabilities—do not venture into deep waters or swim far from shore if you are not confident in your swimming skills.
  • If caught in large waves, dive deep as a wave approaches and, upon finding a break, swim to the shore.
  • Refrain from swimming after consuming alcohol, as it can impair your reflexes and increase the risk of accidents.
  • Research indicates that swimming ability may be compromised in colder water, so try to avoid late-night or early morning swims when water temperatures are lower.
  • Monitor children in the water closely, ensuring they are within reach at all times.

Swimming on Ti Top Island (Photo: Shutterstock) 

Best Spots for Swimming in Halong Bay

Picture-perfect views of Halong Bay from the beaches!

Halong Bay boasts numerous ideal swimming locations, including:

  • Ti Top Island: Features a pristine white sandy beach and crystalline waters, making it perfect for swimming and snorkeling.
  • Soi Sim Island: Known for its serene long white sandy beach and vibrant turquoise waters, ideal for swimming, sunbathing, and unwinding.
  • Tuan Chau Island: This island offers a long beach with clear waters perfect for swimming and various water sports.
  • Ba Trai Dao Beach: Comprising three small islands, it offers beautiful white sandy beaches and clear waters, making it an excellent area for swimming and snorkeling.

Please be aware that designated swimming areas in Halong Bay may be subject to changes based on seasonal conditions and local regulations.

Aerial view of Ti Top Island's crescent beach!

The water in Halong Bay remains relatively warm during the winter months, allowing swimming or diving from a boat. However, be sure to cover up immediately after swimming, as temperatures can drop to between 10-15°C (50-59°F), which may lead to a chill.

Frequently Asked Questions

1. Can I swim in Halong Bay?

Yes, swimming in Halong Bay is allowed. However, always check for local warnings regarding strong currents or water quality, as some areas may not be suitable for swimming.

2. When is the best time to swim in Halong Bay?

The best time to swim in Halong Bay is typically from May to September, when the temperatures are warm and sunny. Please note that this is also the peak tourist season, which may lead to crowded beaches.

3. Are there jellyfish in Halong Bay?

Yes, jellyfish can be found in Halong Bay. Fortunately, they generally pose little risk to swimmers, as the species present are typically not dangerous to humans, making stings a rare occurrence.

Tips: Always remain vigilant and heed any posted warnings or advice provided by local authorities or tour guides.

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