How can I call to make sure there is time for us tomorrow to do the sloth experience when no one answers or calls back?

The only way i think is online. Also there website to sign up for there experiences sucks. You cant do it from your phone only way is by a computer.

Have you tried smoke signals? Perhaps sign language? Maybe a pigeon?

Thank you ! I will check when i get to the computer at my hotel, i found tickets on groupon so i am not sure i will be able to sign online , thanks for the quick response!