The French Trubac Caves were found with little rock formations across the floor that look like soldiers standing at attention.
Royston Cave was discovered in the 16th Century filled with carvings of religious figures.
Around the canoe, divers found 38 separate skeletal remains, including a female human foot bone and bones from an armadillo and other animals.
The finding in France involves a series of non-figurative markings on the wall, which the team interpreted as finger-flutings, marks made by human hands.
The Lockport Cave boat ride is only a small part of the tour of the Erie Canal.
The site in question contained artifacts that are approximately 2,000 years old, dating back to the Roman-Byzantine era, according to the IAA.
Millican Dalton lived in a cave in the lake district for 40 years after giving up on city life in London.