Kenwood cherry blossoms and spring flowers walk Daily, self-guided 10K and 5K along the Capital Crescent Trail. Map available at Starbucks, 4611 Sangamore Rd., Bethesda. 301-946-5496.

Water aerobics Core-strength exercises. Friday, 7 a.m.; Sunday, 8 a.m.; Monday and Wednesday, 7 p.m. Piney Branch Elementary School, 7510 Maple Ave., Takoma Park. 301-891-8017 or $8 per session.

4K run/walk and tot trot The Race to End Poverty. Saturday, 7:30 a.m.; race begins at 9 a.m. Meadowbrook Park, 7901 Meadowbrook Lane, Chevy Chase. 301-608-3504. $20-$33, registration required.

Historic Rockville 10K and 5K walk The 10K trail is mostly on city sidewalks, with a short section through a park. The 5K trail is suitable for strollers and wheelchairs. Pets must be leashed at all times. Saturday, registration, 8 to 11 a.m.; walkers must finish by 2 p.m. Welsh Park, Rockville Municipal Swim Center, 355 Martins Lane. 301-294-1191. Free.

Prescription Drug Take-Back Day Safely dispose of medications. Saturday, 10 a.m.-2 p.m. Takoma Park Municipal Building, 7500 Maple Ave. 301-891-7142. Visit the Web site for more collection sites.

Children’s cancer research fundraiser St. Baldrick’s Foundation hosts its head-shaving event to raise funds and awareness. Saturday, 11 a.m.-3 p.m. RiRa Irish Pub, 4931 Elm St. Bethesda. 559-836-9802 or

Nursing home Medicaid talk Montgomery County Department of Health and Human Services staff give a presentation; a question-and-answer session follows. Saturday, 2 p.m. Long Branch Library, 8800 Garland Ave., Silver Spring. 240-777-0910.

“Benefits of trigger point dry needling” A doctor of physical therapy will give a presentation on how to relieve pain with this method. Monday, 1:15 p.m. Holiday Park Senior Center, 3950 Ferrara Drive, Wheaton. 301-231-0008 or .

Lymphedema and travel A lymphedema specialist will help prepare you for summer travel and offer tips for a comfortable trip. Next Thursday, 6 p.m. Hope Connections for Cancer Support, Beaumont House at FASEB, 9650 Rockville Pike. Bethesda. 301-493-5002 or

— Compiled by Lisa M. Bolton

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