Super Sibling class: The class teaches preparedness for new siblings, with fun and engaging videos and activities. Call to RSVP. 9 to 10 a.m. Free. Oak Hill Hospital, 11375 Cortez Blvd., Spring Hill. (844) 769-2229.
Family Butterfly Bingo Challenge: Learn to identify native butterfly species with the added fun of a bingo competition. Wear appropriate outdoor clothing, sunscreen and insect repellent, and bring bottled water. Call to RSVP. 10 a.m. Free. Chinsegut Conservation Center, 23212 Lake Lindsey Road, north of Brooksville. (352) 754-6722.
Childbirth preparation program: The program will be in the hospital's maternity suites education room on the third floor of the North Tower. The six-hour class will be followed by a tour. Call to RSVP. 11 a.m. to 5 p.m. Free. Oak Hill Hospital, 11375 Cortez Blvd., Spring Hill. (844) 769-2229.
Second Sunday Community Sing: If you like to sing but hate karaoke, this group is for you. Come sing the old songs, have tea, wine and cheese, and share conversation. Bring your friends, your voice and your guitar if you like. Call Dr. Andy LePage for information. 7 to 9 p.m. Free; there will be an offering basket at the door. Heather Community Center, 9100 Nakoma Way, Weeki Wachee. (727) 517-1148.
Junior Lifeguard Camp at Weeki Wachee: Participants will receive training in basic water rescues, advanced escape techniques, CPR, AED and first aid. Campers will also participate in exercises that build on their public relations and leadership abilities. Program designed for children ages 8 to 14. 9 a.m. to 4 p.m. $250 per child, includes instruction, whistle, lanyard, visor, T-shirt and a certificate of completion. Weeki Wachee Springs State Park, 6131 Commercial Way, Weeki Wachee. (352) 593-5656. The camp continues through July 15.
Politics in the Park: Sponsored by the Greater Hernando County Chamber of Commerce. Meet local, state and federal 2016 political candidates. Participate in a straw poll administered by the Supervisor of Elections Office. Voter registration will be available. Food and beverages will be available for purchase. 5 to 9 p.m. Free. Nature Coast Technical High School, 4057 California St., south of Brooksville. (352) 796-0697.
Tai chi classes: The classes are sponsored by the Brooksville Parks and Recreation Department in conjunction with instructor Tom Dampman. Classes will be each Thursday. Bring a towel and water. 6 to 7 p.m. $5. Jerome Brown Community Center, 99 Jerome Brown Place, Brooksville. (352) 540-3835.
Social/ballroom dance: The dance is hosted by USA Dance's Pasco chapter, a volunteer nonprofit organization. Music provided by DJ Travis. Free dance lesson by Emily and Travis at 6:30 p.m. Beginners to advanced dancers are welcome. Snacks and beverages will be provided, or bring a dish to share. Call Robbie to RSVP. 6:30 to 9:30 p.m. $6 for USA Dance members; $8 for non-members. Lake House, 1202 Kenlake Ave., Spring Hill. (727) 207-8077.