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Lake Thetis

4.3
(72)
•
3.9
(301)
4.3
(72)
•
3.9
(301)
•#12 on "Top 50 things to do and attractions in Jurien Bay"
Lake
Nature & Parks
Geologic Formations

About

Lake Thetis, situated near Cervantes off Hansen Bay Road, is a remarkable saline lake renowned for its living thrombolites. These rock-like structures are considered "living fossils" and are estimated to be around 3,000 years old. The lake's isolation from the sea about 4,800 years ago led to the formation of these unique formations by microorganisms.
Why you should go
    1
  1. Witness one of only five sites in Western Australia with thrombolites closely related to Shark Bay Stromatolites.
  2. 2
  3. Experience walking along a 1.5-kilometer loop with boardwalks to view ancient micro-organisms over 3,000 years old.
  4. 3
  5. Explore a picturesque spot surrounded by turquoise waters where you can observe some of Earth's oldest living organisms.
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Highlighted reviews

Slide 1 of 3
It’s beautiful! So tranquil! There’s benches and tables for eating and be sit by the water. There’s a nice gentle path that’s all paved from the parking all the way around to the side of the lake . Great for wheelchairs or walkers - or prams. If you walk really quietly from the car park, the birds may even be by the side of the lake. We can see them better. If you’re noisy, you better get your camera out before you get down there because they’ll be flying out to the middle of the lake!
Came here to check out the stromatolites and the wildlife. Stromatolites here looked Abit different from those at Mandurah, but good that they have write-ups explaining how these things formed millions of years ago. Plus, more information about the formation of this unique saline lake, and the wildlife you can expect to see here. Round lake walk takes approximately 30 minutes. Boardwalk + trail.
As a marine biologist it's my live long dream to see stromatolites. And finally after years and years of waiting and planning. I got to feast them with my eyes. They are awesome. We owe our entire existence to them. (Sort of... Hehe) It's so awe inspiring to see this prehistoric beings that existed with the very beginning of "life" on earth. But behold... They look smaller than I imagine... But still a good experience. Good facilities as well. But this place should be guarded 24/7 to preserve it. Heheheh
It’s beautiful! So tranquil! There’s benches and tables for eating and be sit by the water. There’s a nice gentle path that’s all paved from the parking all the way around to the side of the lake . Great for wheelchairs or walkers - or prams. If you walk really quietly from the car park, the birds may even be by the side of the lake. We can see them better. If you’re noisy, you better get your camera out before you get down there because they’ll be flying out to the middle of the lake!
Came here to check out the stromatolites and the wildlife. Stromatolites here looked Abit different from those at Mandurah, but good that they have write-ups explaining how these things formed millions of years ago. Plus, more information about the formation of this unique saline lake, and the wildlife you can expect to see here. Round lake walk takes approximately 30 minutes. Boardwalk + trail.
As a marine biologist it's my live long dream to see stromatolites. And finally after years and years of waiting and planning. I got to feast them with my eyes. They are awesome. We owe our entire existence to them. (Sort of... Hehe) It's so awe inspiring to see this prehistoric beings that existed with the very beginning of "life" on earth. But behold... They look smaller than I imagine... But still a good experience. Good facilities as well. But this place should be guarded 24/7 to preserve it. Heheheh
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Map
Address
Cervantes WA 6511, Australia, USA
Cervantes WA 6511, Australia, USA

Know before you go

  • Visit Lake Thetis between Cervantes and Jurien Bay for an insightful journey into Earth's history through stromatolites.
  • Take advantage of the paved path around the lake suitable for wheelchairs or prams while enjoying birdwatching opportunities.
  • Avoid noisy approaches to see birds by the water; instead, quietly walk from the car park to catch them up close before they fly away.

Reviews

Lake Thetis, located near Cervantes in Western Australia, is a captivating destination known for its unique stromatolites. Visitors are impressed by the informative write-ups explaining the formation of these ancient structures and the saline lake itself. The round lake walk takes about 30 minutes and offers a mix of boardwalks and trails. Marine biologists find it fulfilling to witness these prehistoric beings that played a crucial role in Earth's early history. While some mention the need for better preservation efforts, others appreciate the tranquility, wildlife sightings, and easy accessibility of this geological marvel.
Review score
4.3
out of 5
Excellent
72 reviews
From Google
Review score
3.9
out of 5
Good
301 reviews
From Tripadvisor
5 stars
38
4 stars
21
3 stars
8
2 stars
3
1 star
2
5/5Jacqueline K
•
Apr 7, 2025 from
Google
It’s beautiful! So tranquil! There’s benches and tables for eating and be sit by the water. There’s a nice gentle path that’s all paved from the parking all the way around to the side of the lake . Great for wheelchairs or walkers - or prams. If you walk really quietly from the car park, the birds may even be by the side of the lake. We can see them better. If you’re noisy, you better get your camera out before you get down there because they’ll be flying out to the middle of the lake!
4/5YJ
•
Jun 16, 2023 from
Google
Came here to check out the stromatolites and the wildlife. Stromatolites here looked Abit different from those at Mandurah, but good that they have write-ups explaining how these things formed millions of years ago. Plus, more information about the formation of this unique saline lake, and the wildlife you can expect to see here. Round lake walk takes approximately 30 minutes. Boardwalk + trail.
5/5Tan Y
•
Jun 17, 2023 from
Google
As a marine biologist it's my live long dream to see stromatolites. And finally after years and years of waiting and planning. I got to feast them with my eyes. They are awesome. We owe our entire existence to them. (Sort of... Hehe) It's so awe inspiring to see this prehistoric beings that existed with the very beginning of "life" on earth. But behold... They look smaller than I imagine... But still a good experience. Good facilities as well. But this place should be guarded 24/7 to preserve it. Heheheh
4/5Rohit R
•
May 11, 2025 from
Google
Not everyone's cup of tea. Geology enthusiasts will find this place exciting. The lake with the stromatolite deposits is unique.
5/5Nelufar Y
•
Nov 12, 2022 from
Google
A beautiful place to enjoy walk surrounding the river. Great little walk to the river front about 300m kids will love this walk. Don’t miss to locate the purple colour on lake and match with the description. Plentiful parking area.
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Map
Address
Cervantes WA 6511, Australia, USA
Cervantes WA 6511, Australia, USA
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Plan a trip
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Blog
Report security issue
Terms, Privacy policy & Copyright
Browser extension
Travel budgeting & cost tracking
How to embed a map on your travel blog
Jobs
Google data disclosure
Trip planners by destination
Explore cities and countries
Road trips by destination
Best places to visit by category
Popular search terms by destination
Weather around the world
Travel questions & answers
Travel itinerary guides
Maps of cities and national parks
Destinations at different times of the year
Places to visit by destination
Get the app
Get the iOS app from the App StoreGet the Android app from Google Play
Made with ❤ in SF & more
© 2025 Travelchime Inc.