1. Lan Ha Bay, also known as Vinh Lan Ha, is a beautiful and lesser-known destination located in the Gulf of Tonkin, neighboring Halong Bay in Vietnam. It is part of Cat Ba Island, which is the largest island in the Cat Ba Archipelago.

Unlike its more famous neighbor, Halong Bay, Lan Ha Bay is less crowded and offers a quieter and more serene experience for visitors. Its crystal-clear waters, stunning limestone karsts, and pristine beaches make it a paradise for nature lovers and adventure seekers.

One interesting fact about Lan Ha Bay is that it is home to many floating fishing villages, where locals live in small floating houses and make their living through fishing and aquaculture. Visitors can get a glimpse into the traditional way of life of these fishing communities and even embark on a boat tour to explore these villages.

2. The operating hours of Lan Ha Bay may vary depending on the specific activities or tours you choose. It is recommended to check with tour operators or the local tourist information center for the most up-to-date information. Unfortunately, specific contact phone numbers for Lan Ha Bay are not available.

3. To visit Lan Ha Bay, you can book a tour package that usually includes transportation from Hanoi to Cat Ba Island. From Cat Ba Island, you can then take a boat tour to explore Lan Ha Bay. The ticket prices for boat tours may vary depending on the duration and inclusions of the tour. It is advisable to book your tour in advance through a reputable tour operator to ensure availability.