1 to 2 minutes. Additional minutes can be bought.
You get to choose. 2 min to 6 min on average..it's hard on the arms
Depending on the package & if you're not afraid to listen to the instructor. So it can last as long as two minutes.
It various best to call the actual tunnel:)
Depends on the package you buy. For beginners it is 1 min. For more advanced it could be 2 or more minutes.
Thanks! Your answer is awaiting moderation.