America Retreat Package C: Camping ($400) is for you to be able to attend the retreat, get meals, etc., and bring your own tent. If you do not want to bring a tent, you can add America Retreat Package D: Tent ($75), which provides you with a space in a shared tent. In addition, package D provides you with tent space for America Retreat Package E: Yellowstone Excursion, if you choose to also attend that.