September 15 - 16 -- Artsfest. Annmarie Garden in Solomons Maryland. Recognized as Southern Maryland's finest outdoor arts festival. More info.
September 24 -- The Calvert County Waterman's Festival. Noon to 5PM. Held at the Watermen's Wharf in Solomons. Work boat and charter boat docking contests, cream of crab soup cook-off, and other great activities.
October 6 - 7 -- Patuxent River Appreciation Days. Celebrating Maryland's largest intrastate river; free boat rides, music, activities, and more. Calvert Marine Museum. More info.
December 7-8 -- Solomons Christmas Walk. Stroll Solomons' candlelit streets, browse in unique shops. 8th: 6-9pm. 9th: 10am-9pm. Enjoy art, music, entertainment, puppet show and boat light parade. More info.
December 7 - January 1 -- Garden in Lights at Annmarie Garden. 6 PM - 9 PM Nightly - weather permitting. A whimsical drive-through holiday light display filled with light sculptures custom-created by the staff at Annmarie Garden. Play the "Holiday I Spy" game along the way. Closed December 24th. Suggested donation: $5 per car.