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Citadel was built by French officer Olivier de Puymanel for Nguyễn Ánh in 1793. It housed royal palace, private houses, warehouses and jail. It was fenced by walls of 3.5 m height, surrounded by moats of 4-5 m deep and 10 m wide. It was built with 6 gates, but only 4 of them remain.
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Offers mud and mineral baths, waterfalls and a lot of pools.
Suối Nước Nóng Tháp Bà
Costs 50,000 dong for the hot swimming pool and waterfall, 100,000 dong for shared mud bath (if you are 5-8 people you will probably get put in the same tub), shower, hot/cold water jets, hot Jacuzzi, and the hot waterfalls and swimming pool. A massage by trained masseuses and entrance to the hot swimming pool costs 150,000 dong. There is also a package for 500,000 which included a massage among other extras. A VIP spa package will cost you US$100 or more. If you carry on a further 500 m past the mud baths you arrive at a railway bridge across the river that connects to a tunnel. It's a very scenic spot that's popular for wedding photo shoots.
At this pagoda, you will see a 24-m-tall white Buddha. The pagoda was established in 1963 to honour the monks and nuns who died demonstrating against the Diem government. Beware of scammers claiming they are students studying in the temple, demanding that you offer a donation to the school before going up the pagoda. These students have no affiliation with the school and entry to the pagoda is free.
There is a large gym in town called Nha Trang Body Building Club, part of a leisure complex that includes badminton and tennis courts, basketball area and football pitch. Daily pass 20,000 dong; monthly pass, 200,000 dong. Besides, Novotel Hotel also has gym memberships for non-guests, which provide access to the swimming pool, sauna and relaxation room. A daily pass costs 200,000 dong, one-month pass 1,400,000 dong, 3-month pass 2,700,000 dong. Monthly passes include one free massage; ask about this when purchasing. The Sheraton Hotel probably has the best gym in town with excellent views, but costs US$100 for one month, and this doesn't include use of the swimming pool.
On a hill overlooking the city, the cathedral shows the influence of French Catholicism. The Nha Trang area still has a strong Catholic population. There are Catholic shops around the cathedral.
Suối Tiên
Fairy Spring is a small, cool stream and swimming hole much visited by local kids on weekends. The swimming hole is at the end of a short jungle walk. It is a pleasant place to visit in summer. In winter the water is too cold to swim. The stream's source is the area of Hồn Bà, the highest peak in the province. Bottled and canned drinks are available, but no food is sold here yet. The area is slowly being developed and will eventually become a resort with a hotel, bungalows, and restaurant.