Anonymous wrote:They do one at an Art Center in Gaithersburg. My then 6yo went for one session last summer and loved it.

http://www.rcarts.com/

The lego part is only 1/2 day but last summer the owner told me that you can combine with another art camp to turn into a full day.

We are doing the lego camp at RAC this summer. I heard great things about it.

In addition to the LEGO Summer Camp in Falls Church, there is also another Summer Camp at St. Luke's in McLean for rising 1st graders thru 8th graders interested in Robotics, Claymations, Legos, or Star Wars ...

http://www.funbotlab.com/contact-us/request-a-brochure
http://www.funbotlab.com/our-programs/lego-star-wars
http://www.funbotlab.com/images/funbotlab/PDF/flyer_8.5_x_11.pdf

Also, check Fairfax County Parks & Recreation Camps:
http://www.fairfaxcounty.gov/parks/parktakes/

Here are links to LEGO Summer Camp in Falls Church. I've heard good things about it & they fill up quickly. They just moved to a new building on Park Ave. (It's one of few camps that start at age 4, most start at age 6.)

http://therenaissancechild.net/
Online registration ... https://thriva.activenetwork.com/Reg4/Form.aspx?IDTD=6907572&RF=3709104

LEGO MAGIC SUMMER CAMPS 2012

Fantastic camps mixed with detailed instruction and inventive building strikes a fun balance between creativity and structure. Let your child be one of the first to experience the new Robotics program designed by Lego Education (not available in stores). LegoMagic Summers inspire your child’s creative thinking and curiosity with fun and STEM educational science and engineering projects that help to develop critical thinking and problem-solving using an award-winning computer based program and Lego models. We add sun and fun in the park as well as the best-trained Lego coaches to help make the full day complete! Spaces are limited!

The DC JCC summer camp offers Lego Camp for two of their sessions (www.dcjcc.org). Location is 16th St NW (cross street is Q I think).

OP, not sure where you are in the DC Metro area, but City of Fairfax has "Pre-Engineering with Legos" summer camp for 5 and 6 year olds and another Legos program for slightly older kids. Lots of robotics things, too. Check out http://www.fairfaxva.gov/SummerPrograms/SummerSpecialtyCamp.asp

Well it is very small. Only about 2-4 people run the place and it isn't their full time job. My son only went there for 2 days but he liked it a lot and really got into legos afterwards. It fit what we needed for the two days. I don't know about it for an extended period of time.