“Lighthouses of Cape Ann” –Wednesday July 10. Departs at 7 p.m. from Seven Seas Whale Watch, 63 Rogers St., Gloucester, aboard the 100-foot Privateer IV. This three-hour narrated sunset cruise up the Annisquam River and around Halibut Point will pass all six of Cape Ann’s lighthouses, including the Twin Lights of Thacher Island, before returning via Eastern Point to Gloucester Harbor. Snacks and sandwiches available (or bring your own), plus cash bar. Donation is $30 per person. Credit Cards accepted.