Spring Fling Yoga Day. A day of fun and fitness for the yogi and young grasshopper alike includes a variety of yoga classes and Thai massages, a potluck porch party and music. And it's all free. Sat., April 25, 9 a.m.-5:30 p.m., Jai Dee Yoga and Wellness Studio, Tampa,free, 231-2311, jaideeyoga.com.
Happy Days. American Stage Theatre Company performs Samuel Becketts haunting, funny play about the tension between stasis and change as the first part of a two-show farewell to its current digs. A party follows at Cafe Alma. Visit americanstage.org for more info. 3 and 8 p.m., Sat., April 25, American Stage Theatre, St. Petersburg, $20, 727-823-7529.
Regrets Only This comedy by the reliably hilarious Paul Rudnick about the issue of gay marriage in a ritzy Manhattan social circle stars WEDU host Cathy Unruh and Tampa attorney Tom Scarritt. Unruh and Scarritt become actors for an evening to benefit the Stageworks Outreach Program, which teaches at-risk youth about anger management, tolerance, AIDS, gang prevention, and empowerment through theater. 8 p.m., Sat., April 25, Friday Morning Musicale and Federated Clubs Building, Tampa, $25 general, $35 preferred seating, 813-251-1990.
Free Pops in the Park. The Florida Orchestra kicks off its free Pops in the Park concert series, with attendees encouraged to bring canned food donations for Tampa Bay Harvests food bank services. Guest conductor Stuart Chafetz leads a program of symphonic and pop hits, including Dvoraks Carnival Overture, the Bacchanale from Saint-Saens Samson and Dalila, Tchaikovskys Capriccio Italien, John Williams Liberty Fanfare, and selections from Rodgers and Hammersteins My Fair Lady. Sat., April 25, 7:30 p.m., Compton Park, 16101 Compton Drive, Tampa Palms.
FRIDAY-SATURDAY
ECO.Lution 2009. Urban Charrettes celebration continues with the State of the River Address on Friday and Saturdays ECO.festival. State of the River Address, Fri., April 24, 4 p.m., Middle Hillsborough River and Orange Lake (meet at a boat launch at 7101 N. 40th St., Tampa), Tampa, friendsofhillsboroughriver.org; and ECO.festival, Sat., Apr. 25, 10 a.m.-5 p.m., Cotanchobee Fort Brooke Park, downtown Tampa, free. For more info, go to ecolutiontampa.com.
SATURDAY-SUNDAY
23rd Annual Green Thumb Festival. St. Petes Arbor Day/Earth Day celebration (hosted by Suncoast Sierra Club) features environmental and horticultural exhibits, plant vendors, the Garden Club of St. Petersburgs Flower Show, a grow and share program, a soil and water diagnostic clinic (bring samples), a recycling rally, a sale of more than 2,000 trees, giveaways, live entertainment, children's programs, a food court and more. April 25-26, 9 a.m.-4 p.m., Walter Fuller Park, St. Petersburg.
SUNDAY
Tut-Tut or My Pharaoh Lady. This might be the most unusual, or at least the most entertaining Sunday church service ever: St. Pete's Unitarian Universalist Church presents an original, intergenerational musical comedy in which a pharaoh's quest for enlightenment brings him into contact with, among others, the "half-back of Notre Dame," a French pastry chef, the Keystone Cops and Mae West. Sun. Apr. 26, 11 a.m., UU Church, 719 Arlington Ave. N. (on Mirror Lake), St. Petersburg, public invited, admission free, (797) 898-3294.
Carnival Tampa '09. This celebration of Caribbean culture features music, food, masquerader dancers, arts and crafts and a parade. Visit carnivaltampa.com for more info. Sun., April 26, 1-10 p.m., Florida State Fairgrounds, Tampa, $15 general (free for children 12 and younger, parking is $5 cars, $10 RVs and buses), 813-622-7275.
Fourth Annual Taste of South Tampa. South Tampa restaurants (Rigatoni Tuscan Oven, Pei Wei, NoHo Bistro and Pitmasters BBQ, among others) offer food and beverage samples from booths set up and scattered throughout Hyde Park Village, with admission an all-inclusive price for tastes of everything; attendees also enjoy live music and other fun diversions. Sun., April 26, 1-5 p.m., Old Hyde Park Village, Tampa, $50 VIP in advance/$55 day of event, $35/$40 general, $20/$25 ages 11-20 (kids 10 and under enter for free). edit event, 813-251-3500.