A Dozen Great 18th Birthday Party Ideas

Outdoor Movies, Surprises & More

Birthday party cake and decorations
Alita Ong/Stocksy United

Deciding on the theme, decor and style of an 18th birthday party can be tough. They are still your kid, but this is their debut into adulthood and it is time to transition to a party that is a little more grown-up.

It Is Time for a Grown-Up Party

Swirled frosting? Check. Goody bags? Got ‘em. There’s a formula for doing kiddie birthday parties and whatever the embellishments – Cowboy Bob and his ventriloquist sidekick and pony rides!

– we all know how to host one. An 18th birthday? Now, that is a big deal!

The question is... what kind of party? How do you incorporate his friends into the celebration? And what on earth do you put in an 18-year-old’s goody bag?

No worries. Teenagers don’t need goody bags – although if your heart is absolutely set on treat bags, a $5 iTunes or Starbucks card and some Hershey’s kisses will do nicely. However, an 18th birthday offers all sorts of more grown-up party possibilities.

Unless you are going the surprise party route, be sure to clear your plans with your child and involve him in the planning. Here are five 18th birthday party possibilities.

(Pssst - if your child is already away at college, here's how to get a birthday cake shipped there in time.)

A Surprise Party

A surprise party is always a fun and relatively easy option. The trick is keeping it a surprise!

Enlist the help of a couple of your child’s friends to assemble a great guest list, choose a location and get your child to the designated location at the appointed time.

Maybe throw in an at-home taco bar or panini buffet to make the party a little more special.

A Wild Scavenger Hunt

No, not the old “find a clothespin and a green Lego” type of hunt. This is the kind Stanford’s freshmen run every fall during campus welcome week.

In the Stanford version, students fan out across San Francisco with cameras and a list of quirky, hilarious and often edgy items to “capture” and bring back.

You can use your town's landmarks and icons to throw a wildly whimsical scavenger hunt party that will be remembered for years.

A "Hunger Games" Party

Like "Harry Potter," Suzanne Collins' incredibly popular "Hunger Games" series is a crossover hit. Even Hollywood celebrities are throwing themselves Hunger Games-themed parties to celebrate their 30th birthdays.

With the right planning, this can be a very memorable outdoor party.

Movie Night at the Pool

An outdoor movie night gives an 18th birthday party or college gathering an extra twist.

Add a swimming pool, inner tubes and some campy shark movies - plus birthday snacks - and you have a winner.

An Inflatable Games Party

Remember those bouncy houses from childhood? This party idea - an inflatable games adventure, with laser tag and gigantic obstacle courses - puts a spin on the inflatable games concept. It offers plenty of grown-up appeal and an abundance of "wow" factor.

One caveat: Do not hold a party of this type on a breezy day. Also, make absolutely sure you hire party rental company staff to install and adequately tether the structures and to supervise them throughout the event.

A Grown-Up Hogwarts Adventure

The tale of Harry Potter has such enduring appeal.

Young adults take the books to college and play quidditch in the quad - more than 400 universities have intramural quidditch teams.

The trick is taking the Harry Potter birthday idea and giving it a more collegiate spin.

A Geocaching Treasure Hunt

College kids, teens and 20-somethings are huge fans of these high-tech, outdoor treasure hunts.

Geocaching uses GPS coordinates and iPhones to locate hidden caches on college campuses, wilderness trails and urban plazas. Add some party prop-filled caches and a very cool forest picnic into the mix for an unforgettable celebration.

A Twilight Party

Stephenie Meyer's romantic Twilight Saga and its vampires, werewolves and love triangles became a pop culture phenomenon, especially among female teens and 20-somethings.

Make your Twilight-themed party (or movie marathon) memorable with a photo booth, fantastic props, Twilight crafts and red velvet cupcakes - with fang marks, of course.

Zombie Tag

Got a zombie fan? Zombie tag or Humans vs. Zombies is an incredibly popular game on college campuses, where the race can last for days.

Depending on how you structure it, you can run an outrageous game of zombie tag in just a few hours and still have time for cake  and maybe a screening of "Zombieland."

A Board Game Party

Host a Settlers of Catan-themed party and the activities take care of themselves - game play, cool decor and lots of wonderful food inspired by those iconic hexagonal tiles.

Not a Catan fan? An Apples-to-Apples tournament, Quelf extravaganza or retro game fest are guaranteed to delight.

Twister, anyone? Or, even better, throw a gigantic games party with a Twister board for 50 or Monopoly game where the players are the pieces.

An Experiential Splurge

Grab a couple of your teen’s closest friends and catch a baseball game or a show. Hit the beach, go river rafting, or book a cooking-for-college class at a local kitchen boutique.

If you go the ball game route, be sure to arrange for a happy birthday message on the scoreboard! It is a moment of embarrassment that they will appreciate and never forget.

A Limo Adventure

A pricier, but definitely luxe party option involves renting a limousine for a couple of hours ($200-$400, depending on the limo company and time).

This idea has particular appeal to teenage girls who like the idea of a glamorous, dressed up night on the town. They can tour the city, snap glamorous photos of each other and grab dinner at a teen-pleasing restaurant like the Cheesecake Factory, a favorite with the prom crowd.

A Shared Wisdom Party

This birthday party idea is particularly lovely for a family dinner.

A few weeks before the big birthday, take a large scrapbook apart. Remove the heavy pages and send one to each member of your extended family and other important people in your child’s life.

Ask them to share their best life advice and any photos they’d like to include for the newest adult member of the family. Present the bound scrapbook at the birthday dinner and read the pages aloud.

Afterward, bring on the frosting swirls, ice cream and, of course, the gifts. Don't forget the gifts! (Here are 89 suggestions for those.)