The number of people to invite for your Tulum bachelor party will depend on the type of celebration you want to have and how many people are able to join. Generally speaking, Tulum bachelor parties range from 8-15 guests. If you are looking for a more intimate experience, consider inviting fewer people. On the other hand, if you want a larger Tulum bachelor party with more guests, make sure that your accommodations can accommodate all of them comfortably.