Senior centers: Lee, 5722 Lee Hwy.; Langston-Brown, 2121 N. Culpeper St.; Culpepper Garden, 4435 N. Pershing Dr.; Walter Reed, 2909 S. 16th St.; Arlington Mill, 909 S. Dinwiddie St.; Aurora Hills, 735 S. 18th St.
Senior trips: Monday, Oct. 6, Penns Cave & Wildlife Park, Centre Hall, Pa., $83; Wednesday, Oct. 8, Tea at Elkridge (MD) Furnace Inn, $51; Friday, Oct. 10, Winterthur, Del., “Downton Abbey” costumes, $31; Saturday, Oct. 11, Ford’s Theatre, D.C., “Driving Miss Daisy,” $48. Call Arlington County 55+ Travel, 703-228-4748. Registration required.
Ask the nurse, Monday, Oct. 6, 1 p.m., Lee. Free. Register. 703-228-0555.
Indepth discussion of reverse mortgages, Monday, Oct. 6, 1 p.m., Langston-Brown. Free. Register, 703-228-6300.
Tom Cunningham 17-piece orchestra, Monday, Oct. 6, 8 p.m. Walter Reed. Free. Register,703-228-0955.
Madison Chess Club, Mondays, 9:30 a.m., Madison Comm. Center. Free. Details, 703-228-0555.
Seniors-only weight room hours, Langston-Brown, $60/15 sessions. Details, 703-228-6300.
Pickleball classes for beginners start Tuesday, Oct. 7, 12:30 p.m., Arlington Mill. $26/4 sessions. Register, 703-228-7369.
Social security advice for boomers, Tuesday, Oct. 7, 7 p.m., Walter Reed. Free. Register, 703-228-0955.
Diabetes information, Tuesday, Oct. 7, 11 a.m., Langston-Brown. Free. Register, 703-228-6300.
Arlington Mill Trail Trekkers, Tuesdays, 9:30 a.m. Free. Register, 703-228-7369.
Table tennis, Tuesdays-Thursdays, 10 a.m., -12 p.m., Walter Reed. Free. Register, 703-228-0955.
Duplicate bridge, Wednesdays, 10 a.m. -10 p.m., Aurora Hills. Cost $5. Register, 703-228-5722.
Line dancing class, Wednesdays, 9:30 a.m., Walter Reed. Register, 703-228-0955.
Arlington Walking Club, Wednesdays, 9 a.m., $4. Register, 703-228-4403.
37th annual Senior Law Day, Thursday, Oct. 9, 10 a.m., Goodwin House Bailey’s Crossroads, free. Register, 703-228-0948.
Introduction to Capital BikeShare, Thursday, Oct. 9, 1 p.m., Walter Reed. Free. Register, 703-228-0955.
Making the most of retirement assets, Thursday, Oct. 9, 4 p.m., Langston-Brown. Free. Register, 703-228-6300.
Theatre appreciation classes begin Friday, Oct. 10, 10:30 a.m., Langston-Brown, $54/9 sessions. Register, 703-228-6300.
Oktoberfest celebration, Friday, Oct. 10, 12 p.m., Culpepper Garden, $6. Register early, 703-228-4403.
Belly Dance workshops, Fridays, 10a.m., Lee. Free. Register, 703-228-5722.
Lee Walkers, Fridays, 10 a.m., $3. Register, 703-228-0555.
Fast-paced walking group, Fridays, 8 a.m., Aurora Hills. Free. Register, 703-228-5722.
Tai Chi practice, Saturdays, 9:15 a.m. – 10 a.m., Langston-Brown. Free. Register, 703-228-6300.