Aug. 19 weekly planner: Top 10 LI events

1. The Barclays

WHEN|WHERE Practice rounds from 9 a.m.-6 p.m. Tuesday, 7 a.m.-6 p.m. Wednesday, ($40); competition begins 7 a.m.-6 p.m. Thursday-Aug. 26, The Black Course at Bethpage State Park, 99 Quaker Meeting House Road, Farmingdale

INFO 201-444-5356, thebarclaysgolf.com; spectator parking is available at Jones Beach State Park in Wantagh, where shuttle buses provide a ride to the course

ADMISSION $55, $150 for the week; clubhouse: $185, $500 week

Walk the Bethpage Black and look for Phil Mickelson -- the crowd at Bethpage State Park is known to burst into embracing cheers when he hits the course. This year, he takes on other golfing greats such as Tiger Woods, Rickie Fowler, and Sergio Garcia in The Barclays. On the challenging Bethpage Black they'll compete in the leadoff contest of the FedExCup, the season-long competition that's the centerpiece of the PGA Tour season.

2. Kelly Clarkson

The award-winning powerhouse singer comes to the Nikon at Jones Beach Theatre, co-headlining with "piano-pop" band The Fray, best known for the song "How to Save a Life." The first "American Idol" winner comes straight from her mentoring stints on the new ABC show "Duets" and NBC's "The Voice," performing songs from her latest album, "Stronger." Get there in time for the opening act -- alternative rock band Carolina Liar.

WHEN|WHERE 7 p.m. Tuesday, 1000 Ocean Pkwy., Wantagh

INFO 516-221-1000, livenation.com

ADMISSION $15-$126

3. Totally Tartan

Close your eyes and you'll think you're in Scotland as the Long Island Scottish Festival and Highlands Games takes you there via Old Westbury Gardens. Grab your kilt and get ready for a blast of Scottish culture with authentic food like birdies, fish and chips, and shortbread along with bagpipe music, step-dancing and a car show. Learn the basics of wool spinning, bagpipe playing and Highland dancing. Cheer your favorite sportsman (8 a.m.-5 p.m. Saturday) during the Highland Games, with competitions in the caber toss, putting the stone and tossing the sheaf.

WHEN|WHERE 8 a.m.-5 p.m. Saturday, 11 a.m.-5 p.m. next Sunday, 71 Old Westbury Rd., Old Westbury

INFO 516-333-0048, liscots.org

ADMISSION $15, ($7 ages 7-17), free younger than 6

4. Culinary treat

Recipes prepared by Chef Guy Reuge of Mirabelle all have a key ingredient -- truffles. The distinguished chef prepares a revolving prix fixe meal with the prized mushroom delicacy including lobster salad with truffle shavings, truffle risotto, truffle-stuffed chicken breast, chocolate truffle cake and more.

WHEN|WHERE 6 p.m. Friday and 5:30 p.m. Saturday, Mirabelle Restaurant at Three Village Inn, 150 Main St., Stony Brook

INFO 631-584-5999, lessings.com

ADMISSION $50 plus tax and gratuity

5. Sleepover and the sea

The Cold Spring Harbor Whaling Museum is going underwater -- during an overnight sleepover focusing on marine biology. Children ages 8 to 12 are invited to start off the weekend with a pizza dinner followed by an exploration of the sea through marine experiments, ocean arts and crafts and games. After that, "Big Miracle" -- a film about gray whales -- adds to the adventure before lights out. A bagel breakfast is served in the morning. Must register by Wednesday.

WHEN|WHERE 6:30 p.m. Saturday to 8:30 a.m. next Sunday, 301 Main St., Cold Spring Harbor

INFO 631-367-3418, cshwhalingmuseum.org

ADMISSION $55 ages 8-12 ($25 for a parent; parent stay not mandatory)

6. Dare to get scared

Five films (each preceded by a vintage horror trailer) -- "The Descent," "Ringu," "Martyrs," "" and a mystery fifth entry -- are screened as part of the Summer Camp Cinema's "All Nite Pay-to-Get-Out" Horror Marathon. If you can withstand the entire program of total horror till morning, you'll be awarded a "Declaration of Ill Health" and a ghoulish continental breakfast with Brett Sherris, cinematic anthropologist and curator of the Summer Camp Cinema festival.

WHEN|WHERE 11 p.m. Saturday till dawn next Sunday, Cinema Arts Centre, 423 Park Ave., Huntington

INFO 631-423-7610, cinemaartscentre.org

ADMISSION $25, ($35 to escape before the end)

7. Bow to the King

The annual "Elvis Tribute Spectacular" starring Shawn Klush and Cody Ray Slaughter at the NYCB Theatre at Westbury keeps the King alive during an era-by-era musical journey through his career. It starts with his early Rockabilly era and continues through his Las Vegas concert years. Included are DJ Fontana, Rock and Roll Hall of Famer and former Elvis band drummer, along with the Sweet Inspirations and The Fabulous Ambassador's Show Band.

WHEN|WHERE 8 p.m. Friday, NYCB Theatre at Westbury, 960 Brush Hollow Rd., Westbury

INFO 800-745-3000, livenation.com

ADMISSION $39.50-$49.50

8. Garden as art

Ever wonder what's down the long driveways and behind the hedges of some of the homes on the East End? Guild Hall gives you the chance to take a look during a self-guided tour of five gardens -- located in Sag Harbor, Bridgehampton and East Hampton Village. It begins with a continental breakfast at 9 a.m. and includes a lecture and book signing at 10 a.m. with landscape architect Edmund Hollander.

WHEN|WHERE Noon-5 p.m. Saturday, Guild Hall, 158 Main St., East Hampton

INFO 631-324-0806, ext. 22, guildhall.org

ADMISSION $100

9. Port Jefferson Greek Fest

It's a big fat festival, as the Greek Orthodox Church of the Assumption presents its outdoor summer celebration with rides and games and more. Enjoy the best of what the Greek Isles have to offer by way of authentic Greek cuisine, including souvlaki, spanakopita, pastitsio and Greek salads. Saturday there will be live bouzouki music and the Hellenic Dancers. Feeling lucky? A winning raffle ticket gets you a new car or one of the many other prizes being offered -- including a trip to Greece. Look for fireworks Friday and Saturday nights at dusk.

WHEN|WHERE 5-10 p.m. Thursday, 5-11 p.m. Friday, 1-11 p.m. Saturday and 1-10 p.m. Aug. 26, Greek Orthodox Church of the Assumption, 430 Sheep Pasture Rd., Port Jefferson

INFO 631-473-0894, portjeffgreekfest.com

ADMISSION Free

10. Seafood festival

The Long Island Maritime Museum's two-day festival gets down to business along the Great South Bay with a seafood bash. The region's bounty is front and center featuring with fresh oysters and clams in the Seafood Pavilion. Live music will be provided by Randy Jackson, Ricky Byrd, Desert Highway and others. Also arts and crafts, children's activities -- and some pirates right off their ships.

WHEN|WHERE 10 a.m.-8 p.m. Saturday, 10 a.m.-7 p.m. next Sunday, 88 West Ave., West Sayville

INFO 631-447-8679, theseafoodfestival.org

ADMISSION $8 (free ages 5 and younger)