ASTRONOMY - UTC Physics and Astronomy Jones Observatory, 10 N. Tuxedo Ave. Planetarium lecture on "The Latest From Titan" and the summer triangle, 7 p.m. Sunday, April 13;telescope viewing until 9 p.m. www.utc.edu/~jonesobs.
BOATING COURSE - Erwin Marina, 3001 Kings Point Road. Chattanooga Sail and Power Squadron teaches course on responsible boating followed by exam to operate a boat legally on Tennesseee waters. Class is 6-8 p.m. Monday-Tuesday, April 14-15. Exam given Thursday, April 17. Fee $10 for permit to sit for exam; Type 600 Boating Safety Exam Permit may be purchased any place fishing and hunting licenses or boat registrations are sold. To register for course: 423-785-6756.
BRYAN OPPORTUNITY DINNER - Chattanooga Convention Center, 1100 Carter St. Scott Rasmussen, co-founder of ESPN, is featured speaker at scholarship fundraiser for Bryan College, 6-9 p.m. today, April 10. $50. 423-775-7323.
BUG-A-PALUZA 16 - Camp Jordan, 323 Camp Jordan Parkway, East Ridge. Scenic City Volks Folks presents Volkswagen expo, with judged car show, swap meet, camping, drive-in theater, games and contests, Kidz Zone and appearances by pinstriper Von Hot Rod, gates open 8 a.m. Saturday-Sunday, April 12-13. $4 spectator entry (good all weekend); free for children under 12. Proceeds go to Ronald McDonald House.
CHATTANOOGA ARBORETUM AND NATURE CENTER - 400 Garden Road. All events require registration: 423-821-1160. All of the following are Saturday, April 12.
Waking Up With the Birds bird hike around Reflection Riding led by naturalist Corey Hagen, 7:30 a.m., free with admission for nonmembers.
Wildlife Photography Workshop, 9 a.m.-noon, limited to 12 participants, $50.
Spring Ephemeral Forest Bathing Retreat: A Mindful Walk in Nature, 10 a.m.-3 p.m., limited to 20 adults 18 and older, $40.
CHATTANOOGA SIDEWALK TOURS - Choice of two tours daily. Dynamo of Dixie Tour departs from Sheraton Read House, corner of Broad Street and M.L. King Boulevard, 10 a.m., noon and 2 p.m. Bluffs and Bridges tour begins at south end of Walnut Street Bridge, 4 and 6 p.m. $15 adults, $7 children 12 and younger. Reservations required: 423-228-0448, www.chattanooga sidewalktours.com.
CHATTANOOGA STAMP CLUB - Hickory Valley Christian Church, 6605 Shallowford Road. Program on First Day Covers, APS sales books available to choose stamps for purchase, 7:30 p.m. today, April 10; doors open at 6:30 p.m. 423-344-7849.
CIVIL WAR HISTORY - Moccasin Bend National Archaeological District, Moccasin Bend Road (Special Event signs will be posted). 706-866-9241, 423-821-7786, www.nps.gov/chch. "A Nation Mourns: Cherokee Removal and the Brown's Ferry Federal Road," 90-minute, ranger-led history hike, 1:30 p.m. Saturday, April 12. Free.
COIN SHOW - Northwest Georgia Convention Center, 2211 Dug Gap Battle Road, Dalton, Ga. Georgia Numismatic Association holds 50th anniversary coin show with more than 500 dealers selling and buying rare coins, paper money, medals, tokens and other related items, 10 a.m.-6 p.m. Friday-Saturday, April 11-12; 10 a.m.-3 p.m. Sunday, April 13. Free appraisals available. Youth program at 1 p.m. Saturday; all youth receive free coins. Free admission, but all visitors must register for a name badge and show photo ID. wwwgamoney.org.
CRAPPIE FOR CANINES - Chester Frost Park, 2318 N. Gold Point Circle. Fish-and-release crappie tournament to benefit Goodwill Assistance Dog Academy, 7:45 a.m.-1 p.m. Sunday, April 13. $40. 423-629-2501.
DAV CAR SHOW - Bradley Square Mall, 200 Paul Huff Parkway, Cleveland, Tenn. Series of second Saturday car shows, April-October, sponsored by Disabled American Veterans begins, 5-9 p.m. Saturday, April 12. 423-472-5080, www.shop bradleysquaremall.com.
FAIRYTALE NIGHTS - Rock City, 1400 Patten Road, Lookout Mountain. Family fun includes helping Little Red Riding Hood avoid the wolf, following Jack's adventures off the beanstalk and into the giant's lair, visit by Cinderella and a knight, 5-8 p.m. daily through April 20. Included in regular park admission of $21.95 adults, $11.95 kids. 706-820-2531.
FAMILY MAGIC NIGHT - Chester Frost Park pavilion, 2318 N. Gold Point Circle. Members of Chattanooga Magic Club Ring 12 perform tricks and illusions, 6:30-9 p.m. Saturday, April 12. $5 per person, $15 family of three or more. Reservations required; limited to 300 guests. 423-842-6748.
FUNDRAISER NIGHT - Flying Squirrel, 55 Johnson St. Bar will donate 10 percent of sales to Humane Educational Society, 5 p.m.-3 a.m. today, April 10. 423-648-8393.
GREAT GATSBY GALA AND CASINO NIGHT - Sheraton Read House, Silver Ballroom, 827 Broad St. Fundraiser for Susan G. Komen of Chattanooga with 1920s theme; includes jazz music, seated dinner from Porter's, silent auction and dancing, 6:30 p.m. April 19. Limited to 230 guests; reservations required. $100 per person. www.komen chattanooga.org.
HIKES - Led by Soddy-Daisy Hiking Club. Bring water and snack. Carpool locations given for those who want to meet group. 423-842-3619.
Saturday, April 12: Signal Mountain Point to Signal Mountain High School, strenuous 8 miles, meet at Red Bank Bi-Lo parking lot, 9 a.m.
Tuesday, April 15: Falling Water Falls, moderate 4-5 miles, meet at Soddy-Daisy Walmart parking lot, 9 a.m.
Saturday, April 19: Surprise hike, moderate 4-5 miles, meet at Durham Street parking lot in Soddy-Daisy, 9 a.m.
LEAVE NO TRACE - Outdoor Chattanooga, 200 River St. Free interactive presentation booth set up at Coolidge Park for public to learn about minimum-impact environmental programs, noon-2:30 p.m. Friday, April 11. 423-643-6888.
LUNCH & LEARN - Tennessee River Gorge Trust, 1214 Dartmouth St. Free monthly program to discuss Trust's current programs, noon Tuesday, April 15. Free Lupi's pizza. Limited seating; register at www.trgt.org/www/docs/139. 423-266-0314.
RUN NOW RELAY - Bradley County Courthouse, Cleveland, Tenn. Eight-state fundraising relay by 26 local runners begins at 9 a.m. Saturday, April 12, and ends Easter Sunday in Boston as show of support for Boston Marathon bombing victims. www.runnowrelay.org.
RUBY FALLS LANTERN TOURS - Ruby Falls, 1720 S. Scenic Highway. Ride the 260-foot elevator down into Lookout Mountain and experience the cavern tour in a new light, 8:30-10:30 p.m. Fridays through September. Tour size limited; reservations required. $24.95. 423-821-2544.
SPRING PAINT AND SIP PARTY - Georgia Winery, 6469 Battlefield Parkway, Ringgold, Ga. Artsy U leads painting session that includes wine tasting bar and light hors d'oeuvres, 2-5 p.m. Saturday, April 12. $40. 706-937-9463.
TRAILS & TRILLIUMS FESTIVAL -South Cumberland State Park and Monteagle Sunday School Assembly near Sewanee, Tenn. Three-day festival includes hikes, workshops, nature photography workshops, Teddy Bear Picnic for families, children's activities and more, Friday-Sunday, April 11-13. General admission $10, additional $10 offers admission to all hikes and programs, all children's events free. For complete schedule: www.trailsandtrilliums.org.
TRAIN RIDES - Tennessee Valley Railroad Museum, 4119 Cromwell Road. 423-894-8028, www.tvrail.com.
Missionary Ridge Local: Six-mile, 55-minute ride through East Chattanooga to TVRM's repair shop. $17 adults, $11 ages 3-12. Trains depart every Saturday-Sunday at 10:40 a.m., 12:05, 1:15, 2:25 and 3:35 p.m. Also Wednesdays through Fridays at 10:40 a.m. and 12:05 p.m.; and Monday-Tuesday, April 14-15 (during spring break).
Day Out With Thomas: Thomas the Tank Engine and children's activities, April 26-27, May 3-4 and 10; tickets range from $16 to $22 depending on day and time boarding.
WILDFLOWER HIKE - Sequatchie Valley Institute, 1233 Cartwright Loop, Whitwell, Tenn. Naturalists and bio-enthusiasts lead choice of long (three to four hours) and short (one to two hours) hikes, noon CDT Sunday, April 13 (rescheduled from March 29). Arrive an hour early. All ages welcome. $5 to $20 donation based on sliding scale. RSVP at svionline.org.
WILDFLOWER HIKE - Cloudland Canyon State Park, 122 Cloudland Canyon Park Road, Rising Fawn, Ga. One-mile hike through Sitton's Gulch for ages 10 and up to identify and record wildflower species. 2-4 p.m. Reservations required, $10. Saturday, April 12. 706-657-4050.
WRESTLING - Sale Creek Middle/High School, 211 Patterson Road. Empire Wrestling Entertainment matches feature Ace Rockwell & Andrew Alexander vs. Shaun Tempers & Matt Fortune, plus Joey Lynch and Kyle Matthews, 8 p.m. Friday, April 11; doors open at 7 p.m. $10. 423-332-8819.
WWE LIVE - McKenzie Arena, Fourth and Mabel streets. Card (subject to change) features John Cena, Cody Rhodes, Goldust, Sheamus, The Wyatt Family, Kane, Big Show, Roman Reigns, Dean Ambrose, Seth Rollins, Big E, Fandango and The USOs, 5 p.m. Sunday, April 13. $15, $25, $35, $50 and $95. www.tickettracks.com.
BRAINERD FARMERS MARKET - Grace Episcopal Church, 20 Belvoir Ave. Open 10 a.m.-noon Saturdays. 423-698-0330.
CHATTANOOGA RIVER MARKET - Tennessee Aquarium plaza, 1 Broad St. Open 10 a.m.-5 p.m. Saturdays. www.ChattanoogaMarket.com.
MAIN STREET MARKET - 324 E. Main St. Open 4-6 p.m. Wednesdays. mainstfarmersmarket.com.
OOLTEWAH FARMERS MARKET - Ooltewah Nursery & Landscape Co., 5829 Main St. Open 3-6 p.m. Thursdays. 423-238-9775.
CREATIVE DISCOVERY MUSEUM - 321 Chestnut St. 423-756-2738, www.cdmfun.org. Seventh annual Pinwheels for Prevention, 5:30-8 p.m. today, April 10, offers free safety kits for first 500 kids to visit during free family night plus puppet programs by Chattanooga's Kids on the Block as part of National Child Abuse Prevention Month.
USA BALLROOM - St. Paul's Episcopal Church, 305 W. Seventh St., $5 first-time guests, $6 members, $10 nonmembers. 7-11 p.m. Friday, April 11. 645-4888.