Beginners are welcome at a kayak lesson and guided tour of Cold Spring Harbor with the Long Island Kayak Club. Meet at 10 a.m. at Cold Spring Harbor State Park (Route 25A). Admission includes boat rental, lesson and guide. Reservations required.
WEB livenation .com
Runners rule on Shelter Island -- at least on Saturday. The island's popular annual 10k run starts at 5:30 p.m. sharp at the roundabout on School Street. Olympians Frank Shorter, Joan Benoit-Samuelson, Bill Rodgers and Keith Brantly will lead pace groups. A post-race party follows at Island Boatyard with live music and a free barbecue for runners. Register noon-4:30 p.m. at the Shelter Island High School gym (33 N. Ferry Rd.).
ADMISSION $45 ($35 advance)
Board the paddleboat Lauren Kristy at the Bay Shore Marina for a 5:30 p.m. sail across the Great South Bay on a sunset and starlight cruise that includes dinner and dancing. You'll make a stop at the Fire Island Lighthouse and visit the Lens Building.
See art created by established and emerging artists on the Northport ArtWalk, a self-guided walking tour of galleries and studios, 1-5 p.m. Along the way, you'll meet local artists, see demonstrations and hear live music. Pick up a map at Copenhagen Bakery (75 Woodbine Ave.) or Caffe Portofino (249 Main St.).
Learn how to have an eco-friendly lifestyle with guest speakers who talk about "green" solutions, along with vendors, children's activities and live music.
INFO pjgreenfest.com, 631-473-1414
See Cinderella, Snow White, Sleeping Beauty, the Little Mermaid and others perform onstage as part of Ballet Long Island, then meet them after the show at a Princess Tea Party with refreshments; bring your camera for photos.
INFO balletlongisland.com, 631-737-1964
ADMISSION $18, $30 for two
Get your imagination going and create your own masterpiece using various art supplies taken from a craft buffet; for all ages.
INFO licm.org, 516-224-5800
ADMISSION Free with $11 museum admission; free under age 1
Compiled by Lynn Petry