Do something special for your sweetie this Valentine's Day. The Southern Maryland Sound Barbershop Chorus offers two musical options. A romantic dinner package includes a four-course meal, a long-stemmed rose, and barbershop harmonies by the Southern Maryland Sound, the Patuxent Pearls chapter of the Sweet Adelines, and the Chesapeake Bay Whaling Company and Drum Point Light quartets. Chuck Pearson provides dance tunes. Reservations are required. 6 p.m. tomorrow. Holiday Inn Select, 155 Holiday Dr., Solomons. $30 a person. 301-862-5111. Quartets are also available to serenade someone in person ($40) or by phone ($20) today through Saturday. To arrange a serenade, call 301-373-8152.


Learn about the Potomac River's history while hiking along the shoreline during the Accokeek Foundation's Presidents' Day Shoreline Walk. The three-mile guided hike will include a scavenger hunt and light refreshments after the walk. Hikers should be prepared to wade in shallow water and climb over fallen trees. Organizers advise that participants be at least 6 years old. 1 p.m. Monday, rain or shine. Meet in the parking lot of Marshall Hall in Piscataway Park, 3400 Bryan Point Rd., Accokeek. Free. 301-283-2113, or


The U.S. Navy Concert Band gets toes tapping as the world-famous group performs under the direction of Capt. Ralph Gambone. The program includes Tchaikovsky's waltz from "Sleeping Beauty" and overture to "Romeo and Juliet"; Mozart's "The Marriage of Figaro"; Jacques Press's "Wedding Dance" from "Hasseneh"; and John Philip Sousa's "Our Flirtations," as well as a Gershwin medley and a love song from "The Godfather." 8 p.m. tomorrow. Fine Arts Center, College of Southern Maryland, La Plata campus, 8730 Mitchell Rd. Free. 301-934-7828.