Calling all travel lovers! If you’re constantly seeking new thrills then these marvellous Ontario caves are sure to satisfy. That’s right, you can explore all the province has to offer from underground and it will surely rock your world. 

From caves that lead you deep under the surface to ancient rock structures used by Indigenous people, Ontario is filled with unique wonders for you to discover.

And whether you opt for an organized tour or a self-guided escapade, exploring them is always a good time.

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Especially when you’re looking for a way to cool off on a hot summer day. 

Ontario’s largest known underground cavern is located roughly two hours from Toronto and the place is filled with so much history. 

That sounds like an ideal day trip destination to us. But if you’re looking to shake things up this summer, just take a look at the list below.

And as with any outdoor adventure, always check the latest updates, rules, and regulations before heading out. 

Now, strap on your best hiking gear and get ready for the excursion of a lifetime. 

Time to go down under!

Tyendinaga Caverns and Caves

Price: $14

Address: 2623 Harmony Rd., Belleville, ON

Why You Need To Go: With the addition of lights and stairs, "Ontario's largest known cavern" is easier than ever to explore.

Warsaw Caves

Price: Starting at $7

Address: 289 Caves Rd., Warsaw, ON

Why You Need To Go: You can discover seven different caves that were formed during the ice age at this Ontario conservation area. Just don't forget your flashlight.

Hell Holes Nature Trails

Price: $7

Address: 420 Barrett Rd., Centreville, ON

Why You Need To Go: You can make your way down an ominous staircase that leads to a magnificent underground cave.

Limehouse Conservation Area

Price: Free

Address: 12169 Fifth Line, Limehouse, ON

Why You Need To Go: You can venture down ladders into huge cracks in the escarpment rock here. This area is often referred to as the "Hole In The Wall."

Charleston Lake Provincial Park

Price: $10.84

Address: 148 Woodvale Rd., Lansdowne, ON

Why You Need To Go: When you arrive at this Ontario park be sure to look for the Sandstone Island Trail. From here, you can find an interesting rock shelter that was used by Aboriginal peoples over 1,200 years ago.

Bonnechere Caves

Price: $19

Address: 1247 Fourth Chute Rd., Eganville, ON

Why You Need To Go: You can discover ancient fossils embedded in the cave walls at this incredible spot.

Greig’s Caves

Price: $10

Address: 407 Scenic Caves Rd., Lion's Head, ON

Why You Need To Go: You'll feel a sense of peace and tranquillity as you explore these limestone caves on the Bruce Peninsula.

Scenic Caves Nature Adventures

Price: $26.50

Address: 260 Scenic Caves Rd., The Blue Mountains, ON

Why You Need To Go: With 15 kilometres worth of trails, you could wander around exploring various caves and caverns all day at this gorgeous spot.

Eramosa Karst Conservation Area

Price: $10 parking

Address: Upper Mt. Albion Rd., Stoney Creek, ON

Why You Need To Go: This charming conservation area is filled with tons of underground caves, caverns, streams, and meadows for you to explore.

We strongly advise that before you go swimming or visit any location, you check the most recent updates on potential hazards, security, water quality, and closures. If you do plan to visit a location, respect the environment.

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