UNDERWATER BEAUTY SURFACES. Wednesday, June 18, 7 to 8:30 p.m., Abbot Public Library, Marblehead Room, 235 Pleasant St., Marblehead. Andrew Martinez, diver, author and underwater photographer presents an illustrated talk, “The Color and Beauty of New England’s Underwater World,” as part of a bonus lecture in the Underwater in Salem Sound Lecture Series. Free. 781-631-1481, www.abbotlibrary.org.
FULL MOON AND FOLKLORE HIKE. Friday, June 13, 8:30 to 10:30 p.m., Crane Wildlife Refuge, Argilla Road, Ipswich. The month of June’s full moon is called the Full Strawberry Moon. Local Native American tribes knew it as a signal to gather ripening fruit. Welcome the arrival of summer with fresh strawberries and a celebratory bonfire at the end of the hike, which will travel up and down dunes, through soft sand, for approximately 21/2 miles. Dress for the weather to maximize comfort, and bring water. Attendees may also bring flashlights or head lamps, but leaders may ask for moments of total darkness to fully enjoy the moon and the shadows it makes on the dunes. $15 TTOR members, $20 nonmembers. Hike suitable for ages 13 and older. Preregistration required at www.thetrustees.org/craneoutdooradventures.
NATURE JOURNALING. Saturday, June 14, 9 a.m. to noon, Ipswich River Wildlife Sanctuary, 87 Perkins Row, Topsfield. Nature journaling is a way of looking at the natural world more closely. Look at some examples of nature journals and do some journaling exercises to share techniques, and then go on a journaling expedition into the sanctuary. $28 Mass Audubon members, $34 nonmembers. Advance registration required; 978-887-9264, www.massaudubon.org/ipswichriver.
FAMILY CAMPOUT: TRACKS AND SCAT. Saturday, June 14, 6 p.m. to Sunday, June 15, 9 a.m., Ipswich River Wildlife Sanctuary, 87 Perkins Row, Topsfield. Open to families with children ages 4 and up. Celebrate Father’s Day by spending a night under the stars camping with the whole family. On an evening hike, identify animal tracks, scat and signs found on trails and woodland roads. Afterward, roast marshmallows around a fire pit and enjoy s’mores with friends. In the morning, get up early for a light breakfast, then finish tracking an animal found the night before. See where it went, where it bedded down, and maybe find out what it ate before it went to sleep. Rain date, June 21 to 22. Mass Audubon members: $18 adult, $15 child; nonmembers: $22 adult, $18 child. Preregistration required at 978-887-9264 or www.massaudubon.org/ipswichriver.