It’s free… and totally cool. The Red Bank Jazz & Blues Festival all weekend long. Join a predicted 150,000 folks for music, food and crafts. www.redbankfestival.com.

Do the right thing—stop by the Ice Cream Fundraiser to help 11-year-old Jake Healy (pictured here) of Ocean Township beat leukemia. It’s Saturday 10 a.m. to 6 p.m. at SG2 in Shrewsbury. SG2 is an expansion of the Stacy Gemma Boutique (www.stacygemma.com). Or, to make donations directly, call Robin West, (732) 741-8686.

You can also wander through the Ocean Grove Giant Flea Market on Saturday. Check out the tree-lined streets that according to www.oceangrovenj.com have “the largest assemblage of authentic Victorian architecture in the nation.” True, Cape May?

Some 20 miles south, in Island Heights, go green at the Barnegat Bay Festival Sunday. It features environmental activities like pontoon boat tours, an aquarium touch-tank and seedling planting. Crafters sell custom fishing rods, marine art, nature photography. www.bbep.org.

Another 50 miles south it’s more green—plus reds, yellows, blues, purples, pinks—at the Ocean City Flower Show, all weekend. Saturday and Sunday there’s also a Boardwalk Family Fun Fest with face painters, clowns and pony rides. Or hit the antique and boutique shops downtown and along Asbury Avenue. www.ocnj.us.

In northern New Jersey, follow naturalists from the New Jersey Audubon Society (www.njaudubon.org) at the Sussex County Birding and Nature Festival, Saturday and Sunday.

Join artists working in the serene meadows of the Oscar Kincaid Homestead, 587 Powerville Rd. in Boonton Township. Proceeds from art sales go to restore the historic Homestead. Call (973) 263-2567.

In South Jersey, head to the music, trolley tours and crafts at the Victorian Day Promenade in Riverton (www.victorianday.com) Saturday. Also Saturday and deeper South it’s the Appel Farm Arts and Music Festival (www.appelfarm.org) in Elmer.

We know it will be a great weekend—enjoy!