Unexplored ponds

Silver Lake Nature Center, 1306 Bath Road, Bristol, offers a Lower Bucks Water Garden Tour from 11 a.m. to 5 p.m. Sunday and July 25. Begin the tour at the center to get tickets and directions. Call (215) 785-1177.

Lots of tunes

- The Bucks County Blues Society's annual R&B Picnic runs 11 a.m. to 7 p.m. Saturday at Snipes Farm, 890 W. Bridge St., Morrisville. The lineup includes The Larry McCray Band, Roxy Perry, Jr. Cline and the Recliners, J.W. Jones Band, Curley Taylor & Zydeco Trouble, Porkroll Project and more. Advance tickets are $26, $40 at the gate (if available), $20 for children 3-13. Anyone under 21 must be accompanied by an adult 21 or older. Admission includes food, which is served noon to 5 p.m. Bring your own chairs, tables, blankets, picnic supplies, etc. Call (215) 946-9424, (215) 946-4794 or (215) 943-1447. Also, e-mail thomasjoseph3@comcast.net or visit www.bucksbluessociety.com.

- Enjoy a piece of the islands on the grounds of the Mount Hope Estate and Winery, Route 72 (2775 Lebanon Road), Cornwall Township. Flip-flops, shades and wild tropical island shirts are encouraged from 5 to 10 p.m. Saturday for the sounds of trop rock groups at the Easter Seals Summer in Paradise 2010 Concert. Admission is $35, $100 for VIP tickets, which include access to a dinner buffet with unlimited wine, beer and beverages and premium concert seating. A "Pack Your Beach Bag for 2" ticket access to the buffet, premium concert seating and a one-night stay in a nearby hotel with brunch for $315. Entertaining will be Brent Burns, The Calypso Nuts, and Tropical Soul. Food and beer will be available for purchase from Swashbuckler BrewPub & Eaterie. Contact Christina at (717) 591-7027 or visit www.essummerinparadise.com.

Butterfly season

Shady Brook Farm, 931 Stony Hill Road, Yardley, holds its annual Butterfly Festival from 1 to 4 p.m. Sunday. There will be crafts for children, moon bounces, a butterfly talk at 2 p.m., and a butterfly release at 3:30. Call (215) 968-1670 or visit www.shadybrookfarm.com.

Competitive spirit

The 14th annual Lehigh Valley SportsFest, for amateur athletes in 50 different sports, runs today through Sunday evening at various locations in Allentown. New features are a health and fitness expo at Cedar Beach, and two new events — a 5K run at 9 a.m. Sunday on the Little Lehigh Parkway and women's flag football in Union Terrace Park. Get the schedule and directions at www.sportsfest.org or call Ray at (484) 225-8852.

Jersey fresh

The Garden State Wine Growers Association "Walk in the Vineyard" Wine Trail Weekend is noon to 5 p.m. Saturday and Sunday at 32 wineries in Atlantic, Cape May, Cumberland, Gloucester/Salem, Shore, Sussex and Warren/Hunterdon counties. Call (609) 588-0085 for more information.

Farm in the city

The Blueberry Festival at Burnside Plantation is held 11 a.m. to 7 p.m. Saturday and Sunday at 1461 Schoenersville Road, Bethlehem. Highlights include artisans, music and family activities like bluebird house building, colonial crafts and dress up, colonial games, history scavenger hunts, a horse-drawn carousel, pony rides and more. Admission is $8, $10 for both days ($3 discount for military personnel), $7 for seniors or $9 for both days, $4 for youth 6-16 or $5 for both days. Call (610) 868-5044 or visit www.historicbethlehem.org.