Within Carlsbad Caverns itself, about thirty miles of tunnels have been explored.
Within the park is Lechuguilla Cave, which is much longer at 138 explored miles.
As of now, not all of the caverns in Carlsbad Caverns National Park have been fully explored. While the main areas are well-documented and accessible to visitors, many remote and less-traveled sections remain largely uncharted. Ongoing research and exploration efforts continue to reveal new passages and features, indicating that there is still much to discover within this extensive cave system.
Jim White is credited as being one of the first explorers of Carlsbad Cavern. Others made claims that they too explored the famous cave, but little evidence exists to prove or disprove these claims. Jim White spent much of his life working in the cave, as a guano miner and later as a park guide, so his are the stories still told today. He is the iconic early cave explorer.
Luray Caverns is a privately owned entity, charging $23 per person for admission. By contrast, the entrance fee to Carlsbad Caverns -- a much larger cave -- is $6 per person, and entry is free six days a year.
Adults 16 and older costs 6$ Children 15 and younger are free I hope this helps.
Approximately 5 of the Earth's oceans have been explored by humans, while a larger portion of the land has been explored.
I do not know too.
Being the longest cave explored (350 miles)
Yes
It takes about 45 mins to go from San Diego International Airport to Carlsbad, CA, traffic dependent.
About $250. But most of it is out of a fundraiser you have to do
None has been found yet, but it may still be found in the future - not much of space has been explored yet.
America was still pretty much not explored then, so would have been very beautiful and unspoilt