The longest underwater cave system in the world is the Sistema Sac Actun in Mexico, measuring over 215 miles.
Underwater caves are home to a diverse range of aquatic life, including rare species not found elsewhere.
Exploring underwater caves requires specialized training and equipment, due to the unique challenges and risks involved.
Underwater caves can contain ancient artifacts, such as Mayan pottery, providing insights into the past.
The Yucatan Peninsula in Mexico is known for its extensive network of underwater caves, attracting divers worldwide.