Every Wed., Sun., & Tues. Runners of all abilities invited to join a run of 3–5 miles along varying routes from different locations. Rain or shine. Fleet Feet (7 p.m. Wed.), 123 E. Liberty, (734) 769–5016. Dozer Coffee (8 a.m. Sun. & 7 a.m. Tues.), 112 Jackson Plz., (734) 929–9022. Free. fleetfeetsemichigan.com.

July 10–12 & July 31–Aug. 2. Equine competition combining artistry and technical abilities highlighted by graceful freestyle routines set to music. No pets. Concessions. 8 a.m.–5 p.m., 11500 Glenn at Katz (west off Mount Hope Rd. from I-94 exit 150), Grass Lake. Free. [email protected]. 

All invited to watch club members who are new to sailing race each other in a variety of sailboats. Spectators should bring a chair or blanket to sit on. 11 a.m., Baseline Lake, 8010 Strawberry Lake Rd., left from Mast off North Territorial. Free. michigansailingclub.org.  

Every Tues.–Sun. All age 6 & up invited into the museum’s labs to use scientific tools and museum specimens to answer questions and solve problems. The newest program lets participants try out simulated snake senses to experience the world as if they were a snake. Also, models of snake brains available to examine, but no live snakes. 11 a.m.–3 p.m., 1105 North University. Free. (734) 764–0478, ummnh.org.  

Every Sun. All invited to a relaxed pickup game of this spirited team sport played with a flying disc. Note: Overly competitive players are politely asked to leave. 11:15 a.m., Fuller Park, just west of the pool & parking lot (or occasionally across the street). Free. (734) 846–9418, [email protected]. 

Every Sun. All invited to play one of a wide variety of board games in a casual, friendly atmosphere. Instruction provided. Also, on July 5, game playtesting with Michigame Design Lab (2 p.m.), during which players are invited to try out new board and card games from local designers Bruce Bielawa & Joe Hopkins and provide feedback. Noon–6 p.m., 2459 W. Stadium. Free. sylvanfactory.com.

Every Sat. & Sun., except July 5. Hands-on 20-minute family-oriented demo for kids age 5 & up that uses museum specimens to explore paleontology and what can be learned from giant bones and fossils. 12:30 & 2:30 p.m., 1105 North University. Free. (734) 764–0478, ummnh.org.

Adults and kids age 5 & up invited to drop in and play chess. All skill levels welcome. Instruction not provided. Chess sets provided. 1–3 p.m., AADL Traverwood. Free. (734) 327–4200.

All invited to join an afternoon of this early American form of communal hymn singing that uses musical notation with distinct shapes to make learning easier. Songbooks available, but singers are encouraged to bring their own. 1–4 p.m., the Ark, 316 S. Main. Free. (734) 678–7549, [email protected].

Every Sun., except July 5. Thirty-minute tour that uses the museum’s specimens to tell the story of prehistoric whales and dolphins, who had 4 limbs and walked on land. 1:30 p.m., 1105 North University. Free. Limited capacity. Sign up at the welcome desk. (734) 764–0478.  

Every Sun. Docent-led tours exploring “Highlights of the Kelsey” (July 5 & 12), “Ancient Medicine” (July 19), and “At Leisure: Life Beyond Work in the Ancient World” (July 26). 2–3 p.m., 434 S. State. Free. (734) 764–9304.

Students & faculty from this U-M music school performing arts summer program present a program of chamber works TBA. 2 p.m., U-M Walgreen Drama Center Stamps Auditorium, 1226 Murfin. Free. centerstagestrings.com.

All invited to play 9 or 18 holes. Discs available for those who don’t have them. Weather permitting; ground may be muddy. 2–4 p.m., Mary Beth Doyle Park, 3500 Birch Hollow. Free. [email protected], jewelheart.org. 

All invited to pick up used children’s toys and board games. Donations accepted at all AADL branches before July 6. 2–4 p.m., AADL Downtown, lower level program rm. Free. (734) 327–4200.  

Every Sat. & Sun., except July 5. Hands-on 20-minute family-oriented demo for kids age 5 & up that uses museum specimens to explore paleontology and what can be learned from giant bones and fossils. 12:30 & 2:30 p.m., 1105 North University. Free. (734) 764–0478, ummnh.org.

Photographers of all skill levels with any kind of camera invited to walk together around Ypsi and take pictures. 3–4 p.m., 402 S. Huron St., Ypsi. Free. dzanchouse.org/all-events.

Every Sun. Players of all skill levels invited to play this challenging strategy board game. Game materials provided. 5:45 p.m. until whenever, Bill’s Beer Garden, 218 S. Ashley, or the Heidelberg, 215 N. Main (in case of rain). Free. For more info, email Drew at [email protected] or check tinyurl.com/a2goclub. 

Every Sun. All invited to join or listen to an instrumental jam session. 7–9 p.m., 318 S. Main. Free. (734) 665–2968.