The NSS Cave Diving Section is the largest cave diving organization in the United States. We are also an international organization including members and programs in 25 countries throughout the world.

Cave diving is the exploration of submerged natural overhead environments beyond sight of daylight. For those who possess the highly specialized training, equipment and skills required, it can be a very rewarding experience. It can also be deceptively easy and extremely dangerous — especially for those who lack the prerequisite knowledge, equipment and skills. To date, over 400 divers have perished in underwater caves. Not one of them expected to die.

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