I'm having a surprise party for my friend (female), any fun ideas?

Question

I'm having a surprise party for my friend (female) there will be both sexes at the party and I really want this to be special for her. She is turning 15. I have about 12 people coming. We have a large yard. So far, Capture the flag is about all I have. Nothing expensive please!

Answer 1

red rover?

Answer 2

scavenger hunt throughout the neighborhood. have four teams, each of three and give them a list of 100 random items and 20 minutes[ make sure each group has a watch!] and whoever brings back the most items gets a prise. but if you don't make it back in time, you loose.  its SUPER fun. ha

some ideas for the items:

1. toothpick

2. piece of green thread

3. a penny

4. a large piece of cardboard

5. a box of mac and cheese

6. eight marshmallows

7. a piece of trident gum

Answer 3

spin the bottle

(if u young dont do it)

10is young

Answer 4

With a big back yard, there are lots of fun activities. depending on the weather, water games are fun with balloon toss, water tag with balloons, a cheap slip and slide, two if you can, then you can race!  one legged man race, Frisbee toss, limbo, volley ball, bubbles!   You ask people to bring stuff! I'm sure the guys have lots of water guns and sporting equipment, crochet is fun. Cart wheel race for the girls. Red rover.  

Just have plenty of snacks and great music, as long as you plan ahead, have a theme, party favors if you want, the party should be great whatever you do! Just keep it a surprise!