This coming Labor Day weekend’s Windjammer Festival in Camden is more than boats, fireworks, entertainment and maritime heritage. For those looking for interactive challenges, Camden’s Public Landing and harbor plays host to a variety of activities to entertain and engage everyone.

On Saturday, Sept. 3, teams are invited to enter the Build-a-Boat contest which begins at 9 a.m. The Build-a-Boat contest pits 12 teams in a race to build the most sea-worthy vessel out of materials supplied by EBS and Sikaflex. Building will take place on the public landing (although captains and crews can take their vessels home for ‘cosmetic surgery’ Saturday night) and the boats will be put through their paces with a race across the harbor at 2 p.m. on Sunday. Entry forms and rules can be found by clicking camdenwindjammerfestival.com/download: enter soon as space is going fast.

Also on Saturday, kids and teens can enter the festival crate race at 2 p.m, on the public landing. Test one’s speed and dexterity across slippery lobster crates in the inner harbor. Bring sensible shoes, a towel, and a big helping of luck! More information, rules, and forms can be found here: camdenwindjammerfestival.com/download.

On Sunday afternoon, boats of all shapes and sizes are invited to be part of the ad-hoc boat parade that gets under way at 4 p.m. Fill out a form and grab a parade number at either the harbormaster’s building or at Wayfarer Marine any time before or during the parade. Then meet up at Green Can No. 7 near Curtis Island by 4 p.m. Sunday and prepare to be feted as one slowly circuits the harbor.

Throughout the weekend there will be plenty of chances to join the fun or learn new things: from model boatbuilding to blacksmithing, from how to catch lobsters to cooking onboard; from traditional boatmaking skills to rowing a gig. For information on everything windjammer- fireworks, entertainment, pancakes and chowder, music, maritime heritage, and the schooner fleet- visit camdenwindjammerfestival.com