River Murray International Dark Sky Reserve

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River Murray International Dark Sky Reserve Official: River Murray International Dark Sky Reserve. Managed by MMLSA. Preserving pristine skies & unique nature for & . Lofty Ranges.

The River Murray International Dark Sky Reserve is an initiative of Mid Murray Landcare SA and is Australia's first Dark Sky Reserve. It covers more than 3,200 square kilometres from Bow Hill on the River Murray in the south, to Blanchetown in the north and west to the foothills of the Mt. The region is exceptionally dark, and readings above 21.9 are common. The area is known for its dry climate and cloudless skies. Mid Murray Landcare SA worked closely with the Mid-Murray Council to establish the River Murray International Dark Sky Reserve, which received accreditation from the International Dark-Sky Association (IDA) in November 2019.

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17/10/2026

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Wow! What a night.Congratulations to all. 🖤Thrilled to announce...Mid Murray Landcare SA’s Dark Sky committee won the Au...
17/10/2026

Wow! What a night.
Congratulations to all. 🖤

Thrilled to announce...

Mid Murray Landcare SA’s Dark Sky committee won the Australian Government Landcare Innovation Award!

🪐 SATURN AT ITS BEST & DARK SKY WINDOWS! 🖤Happy mid-October, skywatchers!We have some spectacular targets lined up for t...
15/10/2026

🪐 SATURN AT ITS BEST & DARK SKY WINDOWS! 🖤

Happy mid-October, skywatchers!

We have some spectacular targets lined up for the weekend. The big news is that Saturn has just made its closest approach to Earth for the year, meaning it is shining at its absolute brightest and will be up all night long! Even better, our evening moon remains a thin crescent that sets shortly after midnight, giving us a magnificent window of deep, undisturbed dark skies later in the night.

Your weekend Astronomical Outlook for the River Murray International Dark Sky Reserve (RMIDSR), spotlighting the towering river-cliff township of Punyelroo.

PUNYELROO | 17 October 2026
Sunrise: 06:27 | Sunset: 19:27
Moonrise: 10:30 AM | Moonset: 12:59 AM (Sun AM)
Astronomical Twilight Ends: 20:55
Moon Phase: Waxing Crescent 🌒 (~37.4% illumination)
Punyelroo, SA | 34.60° S, 139.54° E

🌙 [WEEKEND SNAPSHOT] 🖤

🪐 [Planetary Highlights]: Look East the moment twilight drops! Saturn is perfectly placed as a brilliant, steady golden light, visible all night long and offering incredible telescope views of its ring system. Over in the West, Venus continues to put on a stunning show as the primary Evening Star until it sets at 8:28 PM.

[The Midnight Dark Sky Window (12:59 AM Onwards)]: Pure darkness. While our 37% crescent moon will provide a soft ambient glow to the landscape during the first half of the evening, it slips below the western horizon at 12:59 AM on Sunday morning. From that exact minute until dawn, the reserve returns to a 100% ink-black canvas, perfect for capturing deep-space objects and tracking the spring constellations.

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📷 | RMIDSR

⏰ A REMINDER TO CHEER ON OUR FINALISTS! 🏆✨The 2026 South Australian Landcare Awards are this Friday, 16 October, and our...
14/10/2026

⏰ A REMINDER TO CHEER ON OUR FINALISTS! 🏆✨

The 2026 South Australian Landcare Awards are this Friday, 16 October, and our region is proudly represented with four finalist spots:

🌌 The Dark Sky Committee – Finalist, Landcare Innovation Award
👤 Chris Tugwell – Finalist, Individual Landcare Award
👩‍🌾 Aimee Linke – Finalist, Women in Landcare Award
🏫 Cambrai Primary School – Finalist, Junior Landcare Award

There’s even more to celebrate: Aimee and the children of Cambrai Primary School will officially present on the main conference stage, sharing our local pygmy possum and Meldanda stories with the entire state.

The gala event is being held at the Bridges Event Centre in Murray Bridge, with special guest presenter Peter Garrett AM and MC Sophie Thomson from Gardening Australia.

🎟️ Have you bought your tickets? Let us know in the comments. If you can’t make it, leave a like or comment to show your support for our finalists and presenters. Every bit of encouragement means a lot!

Wish us luck for Friday! 🤞💫



📷 David Hartley | RMIDSR

WATCH: Late-Season October Milky Way Guide — Shifting Focus! 🌌✨If you missed the early October new moon window, don't pa...
13/10/2026

WATCH: Late-Season October Milky Way Guide — Shifting Focus! 🌌✨

If you missed the early October new moon window, don't pack your camera gear away just yet! While we are entering a bright moonlit stretch this week, October still has one final dark-sky trick up its sleeve.

For our mid-week learning feature, we are showcasing the premium video guide by our fantastic regional partner, volunteer, and citizen science educator, Matt Clarke from Odyssey! 🤝🖤

Matt’s Late-October Field Strategy (South Australian Reference):

⚠️ The Current Write-Off Block: October 15–27. The evening sky will be dominated by moonlight, masking the fine details of the Galactic Core.
🔥 The Late Backup Window: October 28–31! This is our final dark-sky pocket of the month, offering a short evening shooting window right before the moon rises.
🌌 The Low-Horizon Catch: Because it's late in the season, the core will be sitting much lower in the West. Matt recommends changing your composition to utilize an open river layout, a coastline, or an open paddock foreground to clear the tree line!

🪐 Bonus Planet Viewing: If you are heading outside this week despite the moonlight, Saturn is in a prime position for backyard telescope viewing.

This late-month dark window leads beautifully into our upcoming public community events at the end of October. Learning how to track and respect these shifting cosmic windows is exactly why our daily mission to preserve regional darkness matters so much.

👇 Watch Matt’s full breakdown for camera settings and panorama planning tips via the link in our bio or the first comment below!



📷 Matt Clarke | RMIDSR

🌖 ASTRONOMICAL SPRING & THE MIDNIGHT MOON! 🖤Happy October, skywatchers! Following the recent spring equinox, our dayligh...
01/10/2026

🌖 ASTRONOMICAL SPRING & THE MIDNIGHT MOON! 🖤

Happy October, skywatchers!

Following the recent spring equinox, our daylight hours are stretching longer and longer, setting up some beautiful weekend weather. We have some great news for anyone planning a trip out to the reserve this weekend: the weather forecast is set to be completely clear, and the moon will not even rise until well after midnight! This means our skies will be perfectly ink-black and free from lunar light for the first half of the night.

Please note: Daylight Saving Time begins this Sunday at 2:00 AM. All data listed below operates on standard Saturday night timing before the clocks shift forward an hour.

Your weekend Astronomical Outlook for the River Murray International Dark Sky Reserve (RMIDSR), spotlighting the granite-country gateway township of Palmer.

PALMER | 3 October 2026
Sunrise: 05:47 | Sunset: 18:17
Moonrise: 12:43 | Moonset: 10:12 AM (Sun AM)
Astronomical Twilight Ends: 19:43
Moon Phase: Waning Gibbous 🌖 (~58% illumination)
Palmer, SA | 34.85° S, 139.16° E

📷 [WEEKEND SNAPSHOT] 🖤

🪐 [Planetary Highlights]: Look West immediately after sunset! Venus continues to steal the show as the brilliant Evening Star, blazing bright in the twilight sky until it sets at 8:52 PM. Over in the East, Saturn is also perfectly positioned, offering pristine visibility for telescope tracking all night long.

[The Midnight Void (7:43 PM – 12:43 AM)]: Total darkness! Because the moon does not climb over the eastern horizon until 12:43 AM early Sunday morning, the moment evening astronomical twilight wraps up at 7:43 PM, the RMIDSR plunges into darkness. This five-hour dark window is a dream for photographers and star-spotters looking to view the cosmos with zero moon interference.

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📷 Simon Deluca-Cardillo | RMIDSR

The Art of Deep Sleep — Understanding DormancyIf Senescence is the "shut down," Dormancy is the essential sleep that fol...
30/09/2026

The Art of Deep Sleep — Understanding Dormancy

If Senescence is the "shut down," Dormancy is the essential sleep that follows.

To conclude our series of ALAN on Flora, we are looking at the final survival state: Dormancy. This is not "death" or "failure"; it is a sophisticated biological strategy that allows our Mid Murray natives to survive the most brutal parts of the year by slowing their metabolism to almost zero.

🌑 The Signal: Native species like the Mallee Box and Silver Daisy-bush rely on the natural, consistent darkness of the RMIDSR to signal that it is time to stop active growth and enter "energy conservation mode."

🌑 The ALAN Impact: For our followers in the city (Bortle 6+), Artificial Light At Night (ALAN) creates a "Perpetual Spring." Because the tree never "sees" the darkness, it never receives the signal to sleep.

🌑 The Result: This leads to Tree Exhaustion. A tree that is forced to stay active 24/7 drains its internal "battery," leaving it with no reserves to fight off pests, drought, or the sudden extremes of the South Australian climate.
To care for the Land, we must allow our flora the luxury of a dark Sky.



TUNE IN TOMORROW MORNING! 📻🎙️Fresh off the of our four Landcare SA Award finalist spots, our very own Chris Tugwell wi...
28/09/2026

TUNE IN TOMORROW MORNING! 📻🎙️

Fresh off the of our four Landcare SA Award finalist spots, our very own Chris Tugwell will be live on the air tomorrow morning!

He will be chatting with Matt Stephens on ABC Riverland about our tiny team's incredible award sweep, the River Murray International Dark Sky Reserve, and the amazing conservation work happening right here in our community.

🗓️ When: Tomorrow morning (Tuesday, 29 September)
⏰ Time: Just before the 8:00 am news (approx. 7:45 am)
📻 Station: ABC Riverland (1062 AM)
📱 Listen Online: via the ABC Listen App or abc.net.au/riverland

Don't miss it! Drop a comment below to wish Chris luck! 👇✨



📷 Matt Clarke | RMIDSR

OUR finalists. One tiny, powerhouse team. We have some monumental news! 🏆✨We are incredibly proud to announce that our M...
28/09/2026

OUR finalists. One tiny, powerhouse team. We have some monumental news! 🏆✨

We are incredibly proud to announce that our Mid Murray region has achieved a historic milestone, securing four finalist spots in the 2026 South Australian Landcare Awards!

Our community has worked tirelessly to protect our local landscapes, native habitats, and our world-class night skies. This recognition means the world to us:

🌌 The Dark Sky Committee – Finalist, Landcare Innovation Award (Recognised for redefining Landcare to include the protection of our night skies!)

👤 Chris Tugwell – Finalist, Individual Landcare Award (Celebrating 10 years of incredible vision and dedication as Co-Founder of the Reserve)

👩‍🌾 Aimee Linke – Finalist, Women in Landcare Award (Honoured for her outstanding work driving local conservation, regenerative agriculture, and community programmes)

🏫 Cambrai Primary School – Finalist, Junior Landcare Award (Celebrating the incredible environmental education and youth leadership at Meldanda!)

But wait, there’s more! 🌟 Not only are we finalists, but Aimee and the children of Cambrai Primary School have been invited to officially present on the main conference stage, sharing our local pygmy possum and Meldanda stories with the entire state!

🗓️ The state winners will be announced at the Bridges Event Centre in Murray Bridge on Friday evening, 16 October. The gala event features special guest presenter Peter Garrett AM and MC Sophie Thomson (Gardening Australia)!

Tickets to the dinner are open to the community. Check the link in our comments to book a seat and cheer us on! 🎟️

A massive thank you to our hardworking committee, the wonderful families at Cambrai Primary School, and the Mid Murray Council for standing behind us. Wish us luck! 🤞💫



📷 Matt Clarke | RMIDSR

🌕 THE ASTRO SPRING FULL MOON! 🖤Happy Astronomical Spring, skywatchers!Prepare for a spectacular, fully illuminated night...
24/09/2026

🌕 THE ASTRO SPRING FULL MOON! 🖤

Happy Astronomical Spring, skywatchers!

Prepare for a spectacular, fully illuminated night across the river cliffs! This Saturday night features a stunning Full Moon, completely dominating our clear skies and casting a brilliant natural spotlight. It is the absolute perfect weekend to wrap up warmly with the family, head down to the river banks, and watch the massive cliffs glow gold under the lunar rise.

Your weekend Astronomical Outlook for the River Murray International Dark Sky Reserve (RMIDSR), featuring the pristine conservation township of Younghusband.

YOUNGHUSBAND | 26 September 2026

Sunrise: 05:57 | Sunset: 18:11
Moonrise: 17:49 | Moonset: 05:24 (Sun AM)
Astronomical Twilight Ends: 19:36
Moon Phase: Full Moon 🌕 (~99.9% illumination)
Younghusband, SA | 34.82° S, 139.31° E

🌙 [WEEKEND SNAPSHOT] 🖤

🪐 [Planetary Highlights]: Look West immediately after sunset! Venus is putting on an absolute show as the brilliant Evening Star, blazing bright in the western twilight until it sets at 10:07 PM. Over in the East, Saturn is beautifully placed for telescope tracking, climbing into the evening sky right alongside the brilliant full moon.

[The Golden Cliff Glow (6:11 PM Onwards)]: Celebrate the moonrise! Because this massive Full Moon climbs over the horizon early at 5:49 PM—just before sunset—it will already be commanding the eastern sky as evening twilight wraps up at 7:36 PM. This creates a beautifully balanced natural spotlight for nightscape photographers to capture crisp, low-ISO landscape details along the river cliffs and lagoons all night long.

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📷 David Hartley | RMIDSR

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Mid Murray
Cambrai, SA
5353

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