5 caves in Ontario are open to visitors, on guided tours or on your own. Here is what each one is like and how to visit. We also list 1 that is closed or can't be toured, so you don't make the trip for nothing.
Updated 2026-10-28. Every cave in the first list was checked against its official source.
A family-run show cave near Eganville. The one-hour guided tour follows lit boardwalks past fossils and scalloped walls, then returns on a trail past a sinkhole.
Guided tour on boardwalks.
Eganville, ON, 10°C inside, from C$25
A family-run site on the Bruce Peninsula where you walk yourself through a chain of caves, then hike a trail above them for views. Allow about two hours.
Self-guided walk through 10 caves. Cash only.
Lion's Head, ON, from C$15
A nature park above Collingwood where admission covers caves and crevasses, a long suspension bridge, lookouts and forest trails.
Caves, crevasses and a suspension bridge.
The Blue Mountains, ON
Guided tours of what the owners call Ontario's largest known cavern, with fossils, a wishing well, a moment of total darkness and an optional squeeze. Above ground there's a lookout and a 1 km trail.
Guided tour with an optional squeeze.
Tyendinaga, ON, 10°C inside, from C$16
A conservation area named for its seven caves, which you explore on your own with a virtual spelunker's guide. There are also 15 km of trails, a beach, canoeing on the Indian River and a campground.
Self-guided caves in a conservation area. Bring a flashlight.
Warsaw, ON
Reported closed since 2020; AllTrails lists it as closed indefinitely. We couldn't confirm any reopening.
Kaladar, ON. Closed
| Cave | Inside | Adult ticket | Run by |
|---|---|---|---|
| Bonnechere Caves | 10°C | C$25 | Family owned and operated |
| Greig's Caves | not yet checked | C$15 | Privately operated |
| Scenic Caves Nature Adventures | not yet checked | not yet checked | Privately operated |
| Tyendinaga Cavern & Caves | 10°C | C$16 | Privately operated |
| Warsaw Caves Conservation Area | not yet checked | not yet checked | Otonabee Conservation |
5 caves we've checked are open to visitors. 1 is closed. We leave out wild caves that are gated or need a caving permit.
Closed shoes with grip, because paths are often wet. Most caves here stay between about 4 and 10 °C all year, so bring a warm layer.
