Description Drop-In programs do not take online registrations. *Junior Lifeguard Aide, Junior Lifeguard Cadet, Park'n It Leaders-In-Training, and some Docent Trainings require an application process. Please read the activity description of those programs for more details.* ARDENWOOD - Put together some ice, salt, cream, sugar, and a little muscle power to learn how we make delicious old-fashioned ice cream. This is a drop-in program; no registration is required. Disabled accessible. Ardenwood admission fee applies. For information, call (510) 544-2797. Age Group All Ages Location Ardenwood (Fremont) Instructor Interpretive Staff