Mount Gambier Caves, Sinkholes, Volcanoes Adventure



Mount Gambier Adventure exploring sinkholes, caves, trails, rivers and volcanoes


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Mount Gambier Caves, Sinkholes, Volcanoes Adventure

Guided adventure tour

Join us on a geo-nature immersive adventure through South Australia’s incredible Limestone Coast in Boandik Country.

Think caves, sinkholes, craters, limestone cliffs and volcanoes. This adventure includes opportunities to get up close (and inside!) some of these awe inspiring earth creations with everything taken care of by our guides.

An active adventure for those wanting to get outside of the comfort zone and feel the experience through all the senses.

Big Heart Adventures and Seven Senses Adventures have combined forces to bring this action packed and immersive adventure tour.


Day 1 | HISTORY ON EARTH (caves, fossils, First Nations People)

We leave Adelaide in our comfy bus around 8am on the South East Freeway. Heading, well South East of course through towns such as Coonalpyn where silo art and morning tea awaits.

We continue on to Naracoorte Caves for some short walks, optional cave tour and a chance to go way back in time to mega fauna and evidence of ancient creatures at the Wonambi Fossil Centre. We lunch here at the café.

Calling in on a gorgeous winery for tastings of cab sav and shiraz, soaking in the beautiful aspect of vines and landscapes of the Coonawarra.

Our final drive for the day will see us arriving into Mount Gambier late afternoon.

We visit Umpherston sinkhole where we will be Welcomed to Boandik Country. The Boandik people were the first inhabitants of this area and have much to share with us.

We then check in to our group accommodation and get ready for an Italian themed dinner tonight.  From our dinner location we will see the Cave Gardens in the main street of Mount Gambier lit up by night.

Meals Included: Lunch, Trail Snacks, 2 Course Dinner
Walking Distance: km

Day 2 | FRESH (freshest water and oxygen experiences)

You can join us for an optional sunrise adventure this morning on the highest point in town or have a leisurely start before breakfast. From the high point you will see not just the Valley Lake but also the Blue Lake known for its vivid colour and reflection.

After breakfast we hit the road, firstly to get suited up in full wetsuits ready for an invigorating swim. Get up close with tiny fish and snorkel with us in the sinkholes at Ewen Ponds, swim through each of the three ponds and witness an underworld of life with the freshest water on earth.

It’s time to warm up once out of the water. We travel to Mt Schank nearby and get up onto the rim of this extinct volcano to take in the views and size of this little volcano.

We take time to explore the rugged coastline of Pt MacDonnell described in one spot as having a Petrified Forest thanks to the geology of this unique coastline. We take a short beach walk and breathe in the freshest of oxygen straight from the southern end of our earth.

We return to Mt Gambier for a BBQ dinner by the lake as the sun sets. This gives us a chance to test out the kayaks ready for our next day’s adventure.

Meals Included: Breakfast, Lunch, Trail Snacks, 2 Course Dinner
Walking Distance: km

Day 3 | FLOW (the river, circle of life, nature connection)

After a good night’s rest, we drive over the border today to Nelson where the gorgeous Glenelg River flows through to the ocean.

This little town is a popular spot for fishing and boating either by motor or by paddle. It is a gateway to the Glenelg River National Park.

We head deep into the Park where we set up the kayaks and split into groups.

The hikers will head off to complete an easy to moderate 7.5km between stunning launch spots along the Great South West Walk. Wildlife such as frog, echidna, wallabies, koala and emus are found here. Making this a mindful and nature immersive experience. Plenty of trees to shade and views of the river below.

The kayakers will take off from the launch and paddle for a relaxing 8km downstream passing manna gums, stringy barks and blackwood. Bird spotting here may bring sighting of gang gang cockatoos, ravens, wrens, fantails, kookaburras, owls, black duck and shelduck (plus more).

We lunch together at our meet spot before each group swaps over to hike or kayak back to our start point.

After a full day of action, we drive back to our accommodation for a dinner in house – think My Kitchen Rules!

Meals Included: Breakfast, Lunch, Trail Snacks, 2 Course Dinner
Walking Distance: 8km

Day 4 | NATURE THERAPY (forest walk/trail run, salt pool, ocean immersion)

Our morning is a relaxing one if you choose. If you need your sleep or space you can take it easy and stay under the covers.

If you want to insert one last immersive nature experience, you can choose to head out at sunrise for a therapeutic short forest walk near the lakes or get the heart rate up with a trail run around the nearby Tower trails.

Our drive home is coastal today with morning tea and a visit first to Pool of Siloam at Beachport. Known for its incredibly high salt content (7 times higher than the ocean) and healing potential. Locals have been swimming here for years.

We float for as long as we need before heading up and over the dunes for a relaxing swim in the ocean. The bay is protected by a reef bringing protective waters for one last dip. There is also a shower at the Pool of Siloam for one last wash off before we head to Robe for lunch.

This coastal town has many little eateries to choose from, catering to every taste. We wander the coastline examining the overhang of cliffs being eaten away by the mighty ocean.

Following the Coorong, with pink lakes and tall sand dunes to admire, we journey home. Rewarded by the opportunity to experience connection to this beautiful part of SA (and Victoria).

We stop as needed on the way back before hitting the South East Freeway back to Adelaide.

Meals Included: Breakfast
Walking Distance: km

Need To Know


  • Comfortable private vehicle transport
  • Full wetsuit and snorkel hire
  • Kayaks
  • All meals and snacks as per the itinerary
  • 2 course dinners
  • B x 3 | L x 3 | D x 3
  • 3 nights share house style/motel room accommodation
  • Professionally guided walks
  • Kayaking and snorkelling
  • Cave tour
  • Winery tasting
  • Salt lake and beach swim
  • Guided Forest Therapy/Forest Bathing Session
  • Group First Aid kit and emergency communication device
  • Leaders certified in Remote Area/Wilderness First Aid
  • Qualified Bushwalking Leaders
  • Qualified Kayaking and Snorkelling Instructor
  • Small group guided experience
  • Leave No Trace principles
  • Invitations to connect with nature
  • Reduce waste through recycling, reusing and composting
  • National Park entry fees
Big Heart Extras
  • Big Heart Adventures designed head sock
  • A charity contribution to our Give Back program


  • Comprehensive Travel Insurance
  • Meals and drinks not stated on itinerary
  • Items of a personal nature

Packing List

A detailed packing list is provided prior to travel

  • Gear you will need:
  • Rainproof jacket and pants
  • Daypack (35 litre approx.)
  • Water bottles/hydration kit (min 2Ltrs)
  • Personal medications
  • Clothing suitable for bushwalking that is quick drying, warm layers if chilly – consider merino/synthetic clothing
  • Sun protection such as hat, sunglasses and suncream, insect repellent
  • Sleeping attire
  • Swimwear and towel
  • Running gear if you plan to run
  • Consider gaiters (snakes will be around)


  • Type: Challenge Trek Guided
  • Adventure: Mount Gambier Caves, Sinkholes, Volcanoes Adventure
  • Destination: Mount Gambier, South Australia
  • Traditional Country: Boandik
  • Group Size: Max 14 plus leaders

Fitness Requirement

  • A good level of fitness is required for this adventure
  • You need confidence in the water for kayaking, snorkelling, and swimming
  • You will be walking pack free (day packs only)
  • You will walk on a variety of surfaces including undulating trails, steep sections, stairs, rocks, loose ground
  • Our longest walking day is 6km
  • Trail rating: Moderate

Important Information

  • Read terms and conditions before booking
  • Itinerary and price subject to change at any time
  • Travel Insurance is recommended – get a quote from Covermore
  • Note weather, group member welfare and a range of circumstances outside our control can mean last minute changes to our itinerary are necessary once on tour
  • A limited number of single rooms are available on a first-come basis
  • Please contact us before booking any flights. Depending on flight arrival and departure times extra nights accommodation may be required at own expense
  • A minimum of 9 travellers are required for this trip to depart. If minimum numbers aren’t reached, we may decide to still go or we will provide a full refund
  • If this trip departs during Fire Ban Season – last minute changes to our itinerary or walking days may be required for safety reasons
  • Rooming is double/twin share with shared bathrooms
  • Private transport to and from Mount Gambier is included from Adelaide, with multiple pick up points available in transit between Adelaide and Mount Gambier
  • Private transport in Mount Gambier plus daily transfers is included

Adventure Leaders

Our team is qualified, experienced and super friendly. We will ensure you have a fun and connecting adventure. Leaders are certified in Remote or Wilderness First-Aid. All leaders carry a group first-aid kit, emergency communications device, emergency documentation and equipment.