The Summer Arts Fair at the courthouse, July 19 and 20, promises to be the liveliest one yet, with more music, activities and art than ever before.

Inventer Joe Buckler and his  latest kid toy, a huge hands-on goldberg-esque contraption will be on-hand, as well as his famous Bubble Machine.

Island Rec leads the always-popular “Chalk It Up,” sidewalk art contest, and Bonnie Turman of Creative Passions will host a children’s crafts tent designed with children in mind.

Saturday’s music lineup features Daniel Finn, Debbie and Oliver Strasser, and, at 4 p.m., the swingin’ sounds of the One More Time Band at 4 p.m. Sunday’s acts include Paul Arroyo on country guitar and marimba.

Kate Schuman leads a kid-friendly stagecoach singalong, at noon, Saturday and Sunday.

And the art? The Summer Arts Fair is the largest and longest-running art show in the islands.

Court Street will be chalk-a-block with rows of white tents, where talented artists show and sell their wares, food vendors offer a variety of delectable options; picnic on the lawn and explore fine art, pottery, textiles, jewelry, paintings, photography, sculpture, and more.

The Arts Fair is sponsored by San Juan Island Chamber of Commerce.