Surviving Inside A Whale

What to do if you're swallowed by a whale....( this is serious)
Chances are you won’t need this information…but …. what if?……
Advice for Swallowees
Once inside, sit tight and try not to touch anything if at all possible. Gastric processes are invasive and skin does not recover well from encounters with digestive fluids. The process by which gastric acid handles food is slow and wearing clothing, especially of the synthetic variety, is likely to buy you some time.
Escape from the belly of a whale, aside from simple survival, may be far more difficult as the majority of whales - especially the Baleen whales that rely on sieving minuscule marine life forms for their diet - have complex digestive systems. They may have up to four stomach chambers, rather like the multi-stomach system of a cow, which allows a controlled channelling of foodstuffs through the digestive system. There is also the constant intake of seawater that results from their feeding processes. Unless someone is looking for you, or you have a very large cutting implement and a strong stomach, you may have to be satisfied with simply surviving until starvation takes you or good fortune saves the day.
If all else fails you might consider using pepper or a small fire to smoke your way out.
More info here.