Make history with a stay on a World War II submarine! Your overnight experience on USS Cobia will be as unique as the submarine itself. No two visits are exactly alike. With more than 65 different places to sleep, you can choose your adventure on USS Cobia. USS Cobia is the best-preserved submarine in the country. It has been meticulously restored with amenities added like heating and air conditioning, making it perfect for year-round overnight visits.