Not only does inflowing air affect cave temperature, but it also affects cave humidity. The same study showed that humidity was lower whenever the cave inhaled. Natural cave humidity is probably about 95%-100%. Cold air is usually dry, and when it enters the cave environment and warms it becomes even drier. Some areas showed humidity as low as 60% on days when the cave inhaled. Humidity did not stabilize until the Temple was reached, over 2000 feet into the cave.
If you're planning to travel to Cuba, expect to spend about $45 per day during your trip, according to the travel site Budget Your Trip. Spending a week in Cuba will cost you approximately $315, but with pricey chartered flights averaging $717 per ticket, your grand total will reach an estimated $1,032.
Every person going to Cuba as a tourist only needs a valid passport and a tourist card that can be obtained from a travel agency when booking a trip to Cuba or bought at the airport of Toronto or Montreal in Canada before going to Cuba.