One ticket is good for up to 8 participants. When you arrive you and your fellow participants will be asked to fill out an insurance waiver and an equipment rental form which will require a valid credit card to be used as a deposit. Your card will not be charged unless you fail to return the equipment. The tour takes place outdoors and in total is about 12 blocks of walking and two hours long. It is advised that you dress warmly. This is a kid friendly tour.