The festival showcases land- and water-based local environmental groups and is free to the general public. This year, there will be a return of an educational presentation featuring live birds from Massachusetts Audubons Blue Hills Trailside Museum at 1 PM, live music, local natural history authors selling their books, wildlife photographers sharing tips, hot dogs and more comestibles, local produce for sale by CapeAbilities, and many environmentally themed interactive activities for families.