From their event page: 

This Adult Learn-to-Ride is a 2-hour class for adults or mature teens who are ready to ride a bicycle! Pending weather conditions, it is composed of an outdoor class along a quiet lane in the Azalea Garden to promote social distancing. Students will be shown how to balance, pedal, start, stop, and steer a bicycle as well as adjust a helmet for proper fit. Most people learn to ride a bicycle during the class, but even if they do not they’ll leave knowing a low-stress method to teach themselves to ride.

This class is limited to 8 participants. Tickets are available on a self-determined sliding scale. Online registration opens three weeks in advance