Swan Island Dahlia Festival, Canby Oregon

This is a beautiful area, humid and open.  

I don't know about other people, but when I'm surrounded by so much intense color, it's an amazing feeling and has a very positive affect on mood.  I was surprised there weren't painting groups out there, like I saw at the Schreiner's Iris Gardens.

They sold a frozen lemonade that was so sour & so good!   There is an underground bunker with flower displays which might be great to take the folks not up to walking the fields, but I really think the fields have a magical affect.

Atmosphere: Aimed for the serious flower enthusiast, tourists and photographers. All visitors will be expected to not walk in the flower rows.  
What's Available: Flowers, Flower arrangements, Flower growing and arranging lessons, a few food & drink stands, Portable bathrooms, Tour buses (somewhere there's a flower tour).  
Kid Factor: Depending on your kid's interests, temperament and patience, your kids may be thankful for only a short visit,  or swap babysitting and send them off picnicking & kite flying.
Location: 995 Northwest 22nd Avenue, Canby, OR (link)   http://www.dahlias.com