As soon as I enter, I am greeted by the arresting natural beauty of the lake. Dozens of ducks and geese waddle on the grassy shore and float freely in the cool water. Over-hung with lush trees, the lake is a piece of Eden in Bangkok's bustling metropolis.
Following the signs, I make my way over a bridge and find Bird Island. I push through the mesh-covered door and simply stare in amazement. I seem to be in the middle of a dense jungle! Overhead, birds and butterflies flutter and flap freely. In amongst the rich exotic plants, peacocks and other brightly-hued birds wander.
This is so far from the image in my mind that I feel my heart soar. As I explore, I find a few beautiful hornbills in cages. However, these cages are large and full of vegetation. As the graceful birds demonstrate, there is plenty of room for them to shake a tail feather.
Feeling elated, I leave Bird Island and find the gorgeous big black bears. They reside in a large, grassy compound. I am delighted to see that there are no cages in use here. Instead, the bears are surrounded by a moat filled with live fish; lunch on demand. The bears are enjoying a midday snooze, lazily stretching and wiggling their noses.
Next door, the mole-like sun bears are showing off their bellies by standing on their hind legs. They stay on a similar island, this time with a waterfall providing a natural shower.
Taking a left, I discover the impressive white Siberian tigers. They too live on a natural grassy island, sheltering from the heat in the shade of a natural rock cave.
So far I have been impressed by the zoo's natural approach to animal captivity. However, when I wander through the tiger tunnel I am met by the more traditional zoo scenes; tigers, leopards and lions confined to somewhat small, metal cages. In one, a lioness is lovingly licking the back of her mate. She seems unaware of her cramped conditions, but my heart goes out to her nonetheless.
Feeling rather irate, I find one of the zoo workers and question him about the animals' conditions. "Why are some of the animals in such natural-looking enclosures, whilst others are cruelly confined?" I demand angrily. "It is a shame, I know," the friendly Thai man calmly replies. "But we are trying to change the cages. We must wait for more money, you understand?" The man points to the gorillas, who also relax on their own natural island. "In many zoos, these beautiful animals would have cages too, but not here. Here they are freer." As I watch the gorillas swinging through the trees, I cannot help but agree.
Dusit Zoo covers an area of more than 47 acres and is home to over 300 mammals, 1,300 birds and 190 reptiles. It was formerly part of the Royal Dusit Garden Palace, or "Khao Din Wana" in Thai. Established by King Rama V, this was his private botanical garden.
In 1938, the Prime Minister of Thailand asked King Rama VIII to grant him the land so that he could open the zoo to the public. The king consented and, once it had been established by the Bangkok Municipality, the zoo was opened. It was turned over to the Zoological park Organization in February 1954.
The zoo has employed many field-trained zoologists, who have helped design the enclosures. The idea was to ensure that the instincts and behaviours of the wild animals were preserved as much as possible.
Wandering around the grounds, I come across the lemurs. These too are housed in mesh cages, although rather larger with tree trunks to climb and rope to swing from.
As I watch, a cheekily confident ring-tailed lemur springs onto the mesh right in front of my nose, making me jump!
A little further into the park, I come across a family of happy hippos wallowing in a large muddy pool. I watch transfixed as the male and female play with the tiny - well, tiny for a hippo - baby. The way their ears swivel is enchanting in way a way I could never explain.
After a lot of searching, I finally track down the elephants. Their enclosure is currently being transformed, although the keeper doesn't know the plans.
Finally, it is time for me to leave. I cannot resist visiting the sun bears once more before I leave. One stands on his hind legs and wriggles his nose in farewell.
Entrance to Dusit Zoo costs just 100 Baht. It is open 9 am - 6 pm daily.
The main entrance is off Ratwithi Road. You can take many buses, including 70 from Chosen Road, 18, 28 or air-con bus number 10.
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