Juggling – including while wearing stilts – is among skills taught by the OpenAir Circus. (Photo: OpenAir Circus)

The OpenAir Circus of Somerville, Cambridge and surrounding communities is planning its latest season in a nearly 40-year history, welcoming children, teens and adults to learn circus skills.

Classes include acro-yoga, baton twirling, devil sticks, diabolo, juggling, poi, stilting, unicycling and yo-yo, most offered at beginning and intermediate levels. New this year is miming.

Classes start June 18 and run through Aug. 3. Wednesday afternoon classes are at Nunziato Field at 14 Vinal Ave., Somerville, near Union Square and on Thursdays at LouAnn David Park, 1060 Broadway, Somerville, near Teele Square from 4:30 to 7:30. Each class is an hour.

Registration is free. A donation of $30 per child or $50 per family is suggested but not required, and includes as many classes as the student wants.

Equipment loans can be requested during registration. For registration and information, including Covid precautions, go to openaircircus.org.