Encourage them to play on a baseball or softball team

Make one day a week "Adventure Day" and explore someplace you haven't been

Have them join a soccer team

Register them for a scuba class

Arrange for a game of "Capture the Flag"

Organize a water balloon fight

Enroll them in a street hockey league

Coordinate a scavenger hunt

Take them to the driving range to hit golf balls and improve their swing

Install a basketball hoop in your driveway, and then play with them

Participate in nature walks together

Have them join the swim team

Urge them to take lifeguard training

Take them horseback riding

Hold a monthly swimming and pizza day

Visit state parks and take guided hikes

Get season passes to the local minor league baseball team

Take them camping, even if it is only in the backyard

Establish an annual family mini-golf tournament

Get a season pass to a nearby amusement park

Help them build a soap-box car and then hold a derby

Sign them up to be officials in kiddie sports leagues

Organize a neighborhood Olympics

Play flashlight tag on a warm night

Build a skateboard park for kids

Teach your kids to fish

Take them bowling

Schedule family game night

Send them to cheerleading camp

Help them set up an obstacle course

Take them canoeing down a nearby river

Enroll them in Boy Scouts or Girl Scouts

Clean up the neighborhood

Urge them to help an older neighbor by taking out trash, grocery shopping, etc.

Urge them to set-up or reorganize the library at your local place of worship

Volunteer with them at a soup kitchen

Encourage them to volunteer at a hospital

Encourage them to read to patients at a local nursing home

Help them to set up a recycling program in your neighborhood

Help them coordinate a "School Clean-Up"

Sign up the family to build houses with Habitat for Humanity

Have them care for animals at the local SPCA

Encourage them to write a letter to their Member of Congress

Paint old school buildings together

Organize a toy drive for your local children's hospital

Have them volunteer their babysitting services to friends and relatives

Encourage them to become the neighborhood dog walker

Employ them around the house - give them fix-it or clean up projects

Help them start a neighborhood newspaper reporting on the latest!

Give them weekly errands like shopping or getting the mail

Encourage them to hold a "fun fair" for younger kids

Give them a list of daily chores

Hold a multi-family garage sale

If possible, bring them to your office a few days a week to help out

Help them start a pet sitting service while people are on vacation

Have them research a major family purchase

Help them start a business teaching older people how to use the computer

Teach them astronomy and star gaze together

Give them space for a garden and teach them how to grow flowers

Send them to church sponsored activities

Help them start a global email club

Enroll them in fun classes (lego-building, etc.) at the local university

Urge them to conduct a family history search on the Internet or at the library

Enroll them in a CPR training class

Start a book club with your kids

Take them to zoos and museums

Take a cooking class together

Tell them to do a land survey of the 10-square blocks around your house

Give them the camcorder, and let them make their own home movie

Conduct science experiments

Help them create their own web site

Encourage them to "play" the stock market and monitor their investments

Help them start a collection (shells, coins, stamps, etc.)

Inspire them to design their dream house

Help them find a pen pal

Learn a foreign language together

Try a new food dish every week

Help them produce a neighborhood play

Help them start a band and let them practice in your garage

Start a neighborhood art group

Encourage them to paint a mural

Teach them to do bark rubbings

Build, and maintain, a birdfeeder

Give them the supplies to create their own personalized stationery

Have them take pictures of their favorite summer moments and make a scrap book

Teach them to knit

Set up a craft room for tye-dying tee shirts

Show them how to create their own postcards

Encourage them to write a song, and then let them record it

Build a treehouse together

Have them decorate pots and planting seedlings as gifts for the elderly

Send them to their grandparents for a change of scenery

Take them strawberry picking at a local farm and then feast on the fruit

Make homemade ice cream together

Organize a pet show

Coordinate a weekly Family Film Festival

Organize a neighborhood block party

Create, and tend to, an ant farm together

Create an "award" for summer achievements

Arrange a behind the scenes tour of a fire station/pizza parlor/donut shop

Organize a chili cook-off party