I've seen a TON of chelonian species in my many years of touring zoos around the world. I don't know how many different turtles and tortoises I've ever viewed, but it would likely be a substantial number.
I can think of
THREE instances in particular when I saw a lot of chelonians at a single time. One would be when I toured the
National Mississippi River Museum & Aquarium (USA) in 2014 as at that time the facility had a temporary gallery called
Turtles: Secrets of the Shell and in the space of an hour I saw the following
74 species, and they were all easy to view in small tanks.
African Dwarf Mud Turtle, African Forest Turtle, African Pancake Tortoise, Alligator Snapping Turtle, American Red-Bellied Turtle, Annam Leaf Turtle, Asian Brown Tortoise, Asian Softshell Turtle, Asian Yellow Pond Turtle, Aubry’s Flapshell Turtle, Australian Snake-Necked Turtle, Black Greek Tortoise, Barbour’s Map Turtle, Caspian Pond Turtle, Central American Painted Turtle, Chaco Tortoise, Chinese Big-Headed Turtle, Chinese Three-Keeled Pond Turtle, Common Helmeted Tortoise, Diamondback Terrapin, East African Serrated Mud Turtle, Eastern Box Turtle, Eastern Pond Turtle, Elongated Tortoise, Fly River Turtle, Four-Eyed Turtle, Geoffrey’s Side-Necked Turtle, Giant Asian Pond Turtle, Giant South American River Turtle, Golden Thread Turtle, Gopher Tortoise, Hamilton’s (Spotted) Pond Turtle, Hieroglyphic River Cooter, Japanese Pond Turtle, Leopard Tortoise, Malaysian Pond Turtle, Mata Mata, Murray River Turtle, New Guinea Snapping Turtle, Nile Softshell Turtle, Northern Australia Snapping Turtle, Ouchita Map Turtle, Pacific Pond Turtle, Peninsula Cooter, Razorback Musk Turtle, Red-Bellied Short-Neck Turtle, Red-Checked Mud Turtle, Red-Eared Slider, Red-Headed Amazon River Turtle, Reimann’s Snake-Neck Turtle, Savanna Side-Necked Turtle, Saw-Shelled Turtle, Schultze’s Side-Neck Turtle, Scorpion Mud Turtle, Short-Necked Turtle, Smooth Softshell Turtle, Spiny Hill Turtle, Spiny Softshell Turtle, Southeast Asian Box Turtle, Spot-Bellied Side-Necked Turtle, Spotted Turtle, Star Tortoise, Stinkpot Turtle, Striped Mud Turtle, Texas Tortoise, Tuberculate Toad-Headed Turtle, West African Mud Turtle, Western Toad-Headed Turtle, Wood Turtle, Yellow-Bellied Slider, Yellow-Blotched Map Turtle, Yellow-Headed Temple Turtle, Yellow Mud Turtle and Yellow-Spotted Amazon River Turtle.
The second occasion when I saw a mountain of chelonians was in 2019 at the
Stichting Schildpaddencentrum (Foundation Turtle Center) (Netherlands) and I didn't make a species list as every single sign was only in Dutch, but speaking to a staff member I was told that I had seen
80 species during my visit and the establishment had circa 2,000 chelonians over the building's two levels.
The third time was at
Tennessee Aquarium (USA) in 2010 as that facility is regularly listed as having circa
80 species of turtles and tortoises. Even zoos like San Diego, Omaha, Bronx and Columbus all have 30-40 chelonian species at one time.
For the purposes of this thread, I'm going to provide comprehensive lists of only
TWO species: Aldabra Tortoise and Galapagos Tortoise.
From what I can figure out, I've seen
Aldabra Tortoises at
74 zoos. These gigantic tortoises have proven to be super common in famous, AZA-accredited American zoos, as I saw the species 9 times in 2008 and 17 times in 2010 while touring recognizable establishments that most zoo nerds would know very well. Aldabra Tortoises weren't quite as common for me in European and Asian zoos, but they still popped up a number of times while I was on long treks on those continents.
1- Zurich Zoo (Switzerland) – Aldabra Tortoise – 2003
2- Taronga Zoo (Australia) – Aldabra Tortoise – 2007
3- Adelaide Zoo (Australia) – Aldabra Tortoise – 2007
4- Melbourne Zoo (Australia) – Aldabra Tortoise – 2007
5- Smithsonian’s National Zoo (USA) – Aldabra Tortoise – 2008
6- Columbus Zoo and Aquarium (USA) – Aldabra Tortoise – 2008
7- Memphis Zoo (USA) – Aldabra Tortoise – 2008
8- Knoxville Zoo (USA) – Aldabra Tortoise – 2008
9- Zoo Atlanta (USA) – Aldabra Tortoise – 2008
10- Fort Worth Zoo (USA) – Aldabra Tortoise – 2008
11- Phoenix Zoo (USA) – Aldabra Tortoise – 2008
12- Los Angeles Zoo (USA) – Aldabra Tortoise – 2008
13- Zoo Miami (USA) – Aldabra Tortoise – 2008
14- Sedgwick County Zoo (USA) – Aldabra Tortoise – 2010
15- Tulsa Zoo (USA) – Aldabra Tortoise – 2010
16- Kansas City Zoo (USA) – Aldabra Tortoise – 2010
17- Saint Louis Zoo (USA) – Aldabra Tortoise – 2010
18- Mesker Park Zoo & Botanic Garden (USA) – Aldabra Tortoise – 2010
19- Louisville Zoo (USA) – Aldabra Tortoise – 2010
20- Fort Wayne Children’s Zoo (USA) – Aldabra Tortoise – 2010
21- Binder Park Zoo (USA) – Aldabra Tortoise – 2010
22- Cleveland Metroparks Zoo (USA) – Aldabra Tortoise – 2010
23- Philadelphia Zoo (USA) – Aldabra Tortoise – 2010
24- Birmingham Zoo (USA) – Aldabra Tortoise – 2010
25- Baton Rouge Zoo (USA) – Aldabra Tortoise – 2010
26- Dallas Zoo (USA) – Aldabra Tortoise – 2010
27- San Antonio Zoo (USA) – Aldabra Tortoise – 2010
28- ABQ BioPark Zoo (USA) – Aldabra Tortoise – 2010
29- Utah’s Hogle Zoo (USA) – Aldabra Tortoise – 2010
30- Zoo Boise (USA) – Aldabra Tortoise – 2010
31- Oakland Zoo (USA) – Aldabra Tortoise – 2011
32- Charles Paddock Zoo (USA) – Aldabra Tortoise – 2011
33- Reid Park Zoo (USA) – Aldabra Tortoise – 2011
34- Blank Park Zoo (USA) – Aldabra Tortoise – 2012
35- Connecticut’s Beardsley Zoo (USA) – Aldabra Tortoise – 2012
36- Virginia Zoo (USA) – Aldabra Tortoise – 2012
37- Palm Beach Zoo (USA) – Aldabra Tortoise – 2012
38- Busch Gardens Tampa Bay (USA) – Aldabra Tortoise – 2012
39- Little Rock Zoo (USA) – Aldabra Tortoise – 2012
40- Dickerson Park Zoo (USA) – Aldabra Tortoise – 2012
41- Rolling Hills Wildlife Adventure (USA) – Aldabra Tortoise – 2012
42- Tautphaus Park Zoo (USA) – Aldabra Tortoise – 2012
43- Reptile Gardens (USA) – Aldabra Tortoise – 2014
44- Northeastern Wisconsin (NEW) Zoo (USA) – Aldabra Tortoise – 2014
45- Henry Vilas Zoo (USA) – Aldabra Tortoise – 2014
46- Peoria Zoo (USA) – Aldabra Tortoise – 2014
47- Aquatica San Antonio (USA) – Aldabra Tortoise – 2015
48- Abilene Zoo (USA) – Aldabra Tortoise – 2015
49- Reptile Zoo (USA) – Aldabra Tortoise – 2017
50- Creature Conservancy Wildlife Park (USA) – Aldabra Tortoise – 2018
51- Artis Royal Zoo (Netherlands) – Aldabra Tortoise – 2019
52- Lille Zoo (France) – Aldabra Tortoise – 2019
53- Pairi Daiza (Belgium) – Aldabra Tortoise – 2019
54- Tierpark + Fossilium Bochum (Germany) – Aldabra Tortoise – 2019
55- Duisburg Zoo (Germany) – Aldabra Tortoise – 2019
56- Krefeld Zoo (Germany) – Aldabra Tortoise – 2019
57- Tierpark Hagenbeck (Germany) – Aldabra Tortoise – 2019
58- Berlin Tierpark (Germany) – Aldabra Tortoise – 2019
59- Osnabruck Zoo (Germany) – Aldabra Tortoise – 2019
60- Dierenpark Amersfoort (Netherlands) – Aldabra Tortoise – 2019
61- Ree Park Safari (Denmark) – Aldabra Tortoise – 2022
62- Odense Zoo (Denmark) – Aldabra Tortoise – 2022
63- Parken Zoo (Sweden) – Aldabra Tortoise – 2022
64- Wildlife World Zoo & Aquarium (USA) – Aldabra Tortoise – 2023
65- Khao Kheow Open Zoo (Thailand) – Aldabra Tortoise – 2024
66- Chiang Mai Zoo (Thailand) – Aldabra Tortoise – 2024
67- Zoo Negara (Malaysia) – Aldabra Tortoise – 2024
68- Taman Safari III Bali (Indonesia) – Aldabra Tortoise – 2024
69- Taman Safari II Prigen (Indonesia) – Aldabra Tortoise – 2024
70- Gembira Loka Zoo (Indonesia) – Aldabra Tortoise – 2024
71- Ragunan Zoo (Indonesia) – Aldabra Tortoise – 2024
72- Faunaland Ancol (Indonesia) – Aldabra Tortoise – 2024
73- Taman Mini Indonesia Indah: Reptile Park (Indonesia) – Aldabra Tortoise – 2024
74- Bronx Zoo (USA) – Aldabra Tortoise – 2025
Phoenix Zoo (USA) is a memorable zoo for Aldabra Tortoises as the enclosure always reminds me of something that would contain a much larger species.
When I was at
Louisville Zoo (USA) in 2010, I saw Aldabra Tortoises mixed with Demoiselle Cranes (!!) in the
Islands complex.
Multiple American zoos have had
both Aldabra and Galapagos Tortoises together in the same exhibit. One example of that would be
Baton Rouge Zoo (USA), with a minimal barrier surrounding the enclosure.
Occasionally, giant tortoises will end up in Children's Zoos, as was the case at
San Antonio Zoo (USA) in 2010 when I saw Aldabra Tortoises in the
Tiny Tot Nature Spot.
Utah's Hogle Zoo (USA) had Aldabra Tortoises and Leopard Tortoises together in a boring chain-link yard back in 2010.
Housing Aldabra Tortoises in zoos sees the animals on a range of different substrates, from grassy meadows to sandy areas to dirt patches. A nice grass yard is seen below at
Virginia Zoo (USA):
Busch Gardens Tampa Bay (USA) had Aldabra Tortoises mixed with waterfowl (perhaps some wild?) when I was there in 2012. If given a substantial water source, often the tortoises will use it on a daily basis.
A truly memorable building for Aldabra Tortoises can be seen at
Northeastern Wisconsin (NEW) Zoo (USA). How wonderful is this structure? I love it!
At
Abilene Zoo (USA) in 2015, I saw Aldabra Tortoises inside an aviary with Trumpeter Hornbills.
Europe is home to many large
Tortoise Houses, such as this one for Aldabra Tortoises at
Berlin Tierpark (Germany). I like the look of this one as it's quite stylish.
You simply don't see that many big Tortoise Houses in North American zoos, or else the indoor quarters are off show to the public. That's certainly not the case in Europe, with
Dierenpark Amersfoort (Netherlands) another example of a spacious indoor Aldabra Tortoise structure where visitors can walk around indoors.
@Mr Gharial
Odense Zoo (Denmark) is yet another example, and I counted 13 Aldabra Tortoises when I was there in 2022. It's actually quite enjoyable to relax in a warm greenhouse watching tortoises do their thing.
@twilighter
Then there's Southeast Asia, where one really doesn't need extensive indoor housing for Aldabra Tortoises. Here's the large outdoor paddock for that species at
Khao Kheow Open Zoo (Thailand).
Zoo Negara (Malaysia) has an interesting outdoor exhibit for Aldabra Tortoises that is surrounded by glass walls. It's great for young children but probably a nightmare to clean for keepers!
I'm doubtful that there's even indoor accommodation at
Gembira Loka Zoo (Indonesia) for that zoo's Aldabra Tortoises. Is it needed in Southeast Asia? One can imagine some days of intense rain during the wet season and so perhaps there's some shelter somewhere outside of the frame of my photo.
Ragunan Zoo (Indonesia) has an Aldabra Tortoise exhibit that is almost entirely covered to the elements. There's glass viewing at the front, tall walls all around, and part of the ceiling is a metal grid. It's all rather odd and possibly the tortoises are not the original occupants.
Aldabra Tortoises can be seen at the
Bronx Zoo (USA) near the
Zoo Center area.
Up next: Galapagos Tortoises (the only other chelonian I'll post about)