The new members are treated to an evening of education and activities culminating with a Grand Entrance and Dubbing into membership by the Royalty of the club held in the Chapel Royal. Then small groups of postulates participate in Group activities, to get to know each other better, such as Singing songs and Drilling The Oath of Natural Philosophy. They are then given a challenging tour of the Castle and the Catacombs . When they emerge from the latter, they are taken into the Chapel Royal with the Grand Organ where they are formally dubbed into the fellowship. Here a new member receives his Certificate of Membership.
Refreshments then follow with Stories of the evening's events.
Other activities include field trips to such places as the Exploratorium and the Mystery Spot. They sometimes participate in Renaissance and Medieval functions and have put on Treasure Hunts and Easter Egg Hunts for children, and the annual Christmas Carol Sing in the Chapel Royal. The Rules for joining the Natural Philosophers. The Officers of Natural Philosophers.