Book an Appointment with AT Beginning Tango Boot Camp & Refresher Sunday: To register for the 2-day, 6-hour boot camp, just select the first day of the boot camp (the second day is automatically included). Full vaccination is required and should be completed two weeks prior to the boot camp. We are following the CDC/Anne Arundel County mask guidelines. Currently, masks are highly recommended. Boot camp fees are non-refundable, but can be transferred to a different date or a different person.