LOVE IS in the air and, with luck, flying to the Bahamas for the weekend. But if you haven't been able to whisk your loved one off to a Caribbean island, there are plenty of other ways to feed the flames.

How about an evening of classically romantic poetry, prose and song at the Natural History Museum, or a night of romantic tales told by the Voices in the Glen storytellers? Tired of words, more interested in action? There's a Valentine's Day Party at the Capitol Hyatt Regency and a soign,ee swing dance at the National Press Club.

Fitness-minded lovers can get in the swing at a walking workout at Fair Oaks Mall, sponsored by the Heart Association. Or get in the swim at Mt. Vernon Recreation Center where two can dance cheek-to-cheek on ice then jump into the pool -- all for the price of one.

For the musically inclined, there are concerts that will give your heartstrings a tug.

GLIDE TOGETHER -- Friday, 9 a.m. to 10:15 p.m., Mt. Vernon Recreation Center, 2017 Belle View Blvd., Alexandria. Two skate and swim for the price of one, as Mt. Vernon celebrates couples. For skating: adults $3; kids two to 15, $2.25; in-county seniors $1.38; out-of-county seniors, $1.88. Skate rental, $1.25. For swimming: adults, $3; kids two to 15, $2; in-county seniors, $1.50; out-of-county seniors, $2.

GIVE LOVE A BREAK -- Friday, 4 to 8, Capitol Hill Hyatt Regency, 400 New Jersey Ave. NW. Join the Valentine's party in the atrium lobby, featuring music by Jr. Cline and the Recliners. 737-1234.

BEGIN THE BEGUINE -- Friday, 6:30 to midnight, National Press Club Ballroom, 14 and F streets NW. Dine, then dance to Latin and big band music performed by Talk of the Town Orchestra. Reservations recommended. Singles $17.50; couples $30. 662-7501.

COME LOVE WITH ME -- Friday, 8, Baird Auditorium, National Museum of Natural History, Constitution Avenue and 10th Street NW. In a salute to valentines, the Interact Company performs poetry, prose and songswritten by Sir Walter Raleigh, the Brownings, Oscar Wilde and Benjamin Franklin. Smithsonian Resident Associates, $10; non-members $15. 357-3030.

THE CHOCOLATE MUSE -- Friday, 8, St. Mark's Episcopal Church, 118 Third St. SE. A benefit, this first concert of the Music of the Spheres series offers champagne, chocolate and instrumental music from the medieval, renaissance and baroque eras: singles $25; couples $40. 546-6252.

HOW DO I LOVE THEE? -- Friday, 8:30, Cleveland Park Club, 3433 33rd Place NW. Hear Voices in the Glen storytellers perform the myth of "Cupid and Psyche," Robert Frost's "The Witch of Coos," O'Henry's "The Gift of the Magi," Tennyson's "The Lady of Shalott," and more folk tales and stories. Reservations recommended; $5. 362-7881.

HARTSTRINGS FOR VALENTINES -- Friday, 8:30, Kay Spiritual Life Center, American University, Massachusetts and Nebraska avenues NW. Mezzo soprano Ann Hart, pianist Michael Cordovana and the Eakins String Quartet provide an atmosphere of romance performing Schubert, Brahms, Respighi and works from American operettas. Free. 885-3320.

DISCO IS BACK -- Friday, 11 to 3, Holy Redeemer Hall, 206 New York Ave. NW. Let your feet be swept away by disco band Hollywood Breeze; no dress code. Advance tickets, $10; at door, $12. 398-8172.

TAKE A WALK -- Saturday, 8:30 a.m., Fair Oaks Shopping Center, 1205 Lee Jackson Hwy., Fairfax. American Heart Association provides an indoor heart walk at a fast, medium or leisurely pace; prizes awarded. Registration is at 8. 941-8500.

DANCEFREE -- Saturday, 7 to 11, Silver Spring Armory, 925 Wayne Ave., Silver Spring. For something totally different, dress in jeans, sweatpants, or any attire to attend an event that includes a warm-up, cool-down, performers and lots of dancing in any style you choose, part of the Heart-to-Heart festival; $7. 986-1223.

STRAIGHT FROM THE HEART -- Saturday, 8, DAR Constitution Hall, 18th and D streets NW. A concert by Washington Area Barber Shop Choruses features emcees Ed Walker and John Lyon, both of WMAL Radio; benefits Straight Inc. Orchestra $15, tier $12. 281-3337 or 587-0139.