As the spookiest day of the year approaches, Halloween celebrations are in full swing, from water bound days the Aquarium of the Pacific’s Scarium event to the Santa Monica Pier Aquarium’s Dia de Los Muertos Fishy Fest. More of a landlubber? Then get those toes tapping at Malibu’s Big Heart Ranch do featuring music and pumpkins or Dixie Canyon Elementary School’s Pumpkin Fair carnival.  If you need to get some energy burned, then head out to Manhattan Beach’s Pier 2 Pier Walk or join in on the Race for Rescues at the Rose Bowl.

And take note Mom and Dad, this weekend the annual Oktoberfest opens in Long Beach with carnival rides (weather permitting) and plenty of German food and a biergarten. Bring on the hefeweizen!

Los Angeles (Los Angeles, Hollywood, West Hollywood, Silver Lake, Los Feliz, Eagle Rock, Downtown)

Baby Loves Disco Lemonade Tour 2010
Get your baby a’rockin’ to the infectious beats of Baby Loves Disco. On Sunday afternoon, Cinespace Hollywood turns into a child-friendly disco (complete with diaper changing stations, chill out rooms, bubble machines and more) where little ones can shake their groove thangs until naptime. Sun., 12:00 p.m., Hollywood, $20 Single admission, $60 family of four. Event Details.

Westside (Beverly Hills, Westwood, Brentwood, Pacific Palisades, Cheviot Hills, Culver City)

Apple Harvest Faire
Nothing says fall like apple pie and fresh cider. Come out and celebrate cooler days on the Beverly Hills High School front lawn where the fun is in full swing, from games and food to a pumpkin patch, hay ride, train ride and Ferris wheel. Plus, there’s plenty of music and entertainment lined up throughout the afternoon. Proceeds benefit the Beverly Hills Education Foundation. Sun., noon to 5 p.m., Beverly Hills, Free. Event Details.

Family Drawing Hour: Strike A Pose!
Bring out your kids artistic instincts at this family drawing event at the Getty Museum. Get inspired by the works of art and then gather for an hour-long class on drawing the human figure. Not a sketcher? Then vogue away! Bart of the Big Draw LA, so be sure to check for other events occurring this weekend. Sat., 3:30 p.m., Los Angeles, Free. Event Details.

Santa Monica (Santa Monica, Venice, Marina Del Rey, Mar Vista, Malibu)

A Fishy Fest
Celebrate Halloween and Dia de los Muertos with some ghoulish doings at Heal the Bay’s Santa Monica Pier Aquarium. Experiment in the mad scientist laboratory, tiptoe through the marine animal graveyard or create a spooky Day of the Dead inspired artwork.  And don’t miss out on the “Invasion of the Body Snatchers” featuring the incredible feats of marine creatures. Costumes encouraged! Sat. and Sun., 12:30 p.m. to 5 p.m., Santa Monica, $5 suggested donation, children under 13 free.Event Details.

Rockin’ the Ranch
Haven’t found that perfect pumpkin yet? Then make a day of it at the Big Heart Ranch’s Halloween event featuring a family concert by strummer Peter Also. Plus, there’s plenty of fun to be had with scarecrow decorating contests, craft tables, and furry friends galore, from deer to alpaca! Sun., 11 a.m. to 2 p.m., Las Flores Canyon, Malibu, $10 per person, $30 per family pre-paid, $40 at the gate. Event Details.

Beach Cities (Redondo Beach, Manhattan Beach, Huntington Beach, Long Beach)

Pier 2 Pier Friendship Walk
Take a round trip stroll down The Strand from Manhattan Beach Pier to the Hermosa Pier and help raise peace and love for children with special needs. Sponsored by Skechers, this sweet day promises to be a fulfilling afternoon with great people gathering together to raise funds for the education system. Games, food and entertainment round out the afternoon. Sun., 9:30 a.m. to Noon, Manhattan Beach, $25 online, $30 onsite, children under 3 free. Check-in starts at 8 a.m. Register on-line by Sat. noon. Event Details.

Scarium of the Pacific
Give your Halloween costume a test run at the Aquarium of the Pacific spooktacular day of trick or treating, storytelling, creepy coloring contest, and of course, a children’s costume contest! Meet some of the sea’s spookier creatures lurking deep under the water. Sat. and Sun., 9 a.m. to 5 p.m., Long Beach, Free admission to costumed kids under 11 with coupon, adults $24.95. Buy adult tickets on-line and receive $5 off regular price. Event Details.

Valley (Studio City, Sherman Oaks, Encino, Glendale, Burbank, Pasadena)

Camp Ronald McDonald for Good Times’ 18th Annual Halloween Carnival
Put those costumes to use for more than just one day with this celebrity-studded Halloween event at Universal Studios. Presented by JAKKS Cares, you and yoru family can scream away on wild rides, jam to live music, join in story telling and much more ghoulish fun while helping raise moneys for Camp Ronald McDonald Good Times. Sun., 12 p.m. to 4 p.m., Universal City, Adult, $175, Child: $125, Family Pack: $500 (two adults/three kids). Purchase tickets by Friday. Event Details.

The Pumpkin Fair
Dixie Canyon School for a family-sized October fest. Get spooked in the haunted house, hit the bounce houses and then go wild with carnival rides and games, bumper cars, magicians, playhouse shows, a hay maze and more.  Sat., 11 a.m. to 8 p.m., Sherman Oaks, Free. Event Details.

5th Annual Race for the Rescues
Whether you’re family are looking to add a four-legged member or in the mood to burn some rubber, this Rose Bowl event is the place to be. Animal lovers tie up those racing shoes to help benefit non-profit animal rescue organizations while little runners can burn rubber in the Kids Fun Run or learn a few moves at the hip-hop dance class. Sun., 8:30 a.m. to 12:30 p.m., Kids Run 9:30 a.m., Pasadena Rose Bowl, $18-$32. Online registration ends Friday. On-site registration starts Sun. 7 a.m. Event Details.

—Lara Burnap