Gargantua is a limestone cave

Cave

A cave or cavern is a natural underground space large enough for a human to enter. The term applies to natural cavities some part of which is in total darkness. The word cave also includes smaller spaces like rock shelters, sea caves, and grottos.Speleology is the science of exploration and study...

 located on the Andy Good Plateau

Andy Good Peak

Andy Good Peak is located on the border of Alberta and British Columbia on the Continental Divide. It was named in 1916 after Andy Good, a nearby hotel owner.-See also:*List of peaks on the British Columbia-Alberta border*Mountains of Alberta...

 in British Columbia

British Columbia

British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

. it has 6001 m of passages with a depth of 286 m.. It contains the largest natural cavern in Canada at 290m long, 30m wide and 25m high.

In October 2002, a group of caving club

Caving organizations

-Australia:*Australian Speleological Federation is a national organisation formed in 1956. It is an environmental organisation promoting the protection of Australia's unique cave systems....

 students from W. R. Myers High School

W. R. Myers High School

W. R. Myers High School is located in Taber, Alberta, Canada. Founded in 1950, it is the town's only public high school. Students at W.R. Myers range from grade 9 to grade 12. Taber's middle school, D.A. Ferguson, shares a Cafeteria and a band room with W.R. Myers. The school has about 480...

were trapped in the cave overnight, after failing to break through the waterfall exit.