My family will be visiting Belize again in July, and we want to do the Actun Tunichil Muknal trip. I understand there are only two tour groups allowed to take visitors on this trip-- Mayawalk, and what is the other? I have contacted Mayawalk, but I would like to check out the other tour company. Can someone tell me who to cantact, an email address perhaps, and if the prices are the same and if they might be negotable. Thanks!