Bar-T has a preschool camp at one or two of their locations over the summer. I sent my 4 year-old last year and she loved it. I was very happy with it has well. We went to the St. John's location in Olney but I think they have one other location as well.

From the website:
What ages does Bar-T take for summer camp?
Kids Camp is open for campers who will be entering Kindergarten through the 8th grade following the summer. We also offer a Pre-K program (for campers that will be at least 4 years of age or older by September 1st, 2012) at our St. John’s Kids Camp location. - See more at: http://www.bar-t.com/summer/kids-camp/faqs/#sthash.QPfzbCl7.dpuf

And also the Arylawn YMCA has some great camps for that age as well. I used to work there too and they go outside plus go swimming. They are located on Oakmont Ave in Bethesda.

Try Petals Child Development Center. They have a preschool camp for that age and they do go outside a lot!
They are located in Bethesda.

I used to work there. Great staff, small school.
301-229-0540

Bradley hills- www.bhpcns.org or bethesda community school or csacns.org. All great camps for 3 year olds!

OP here - thanks for the suggestions!! The kidville option looks perfect (though I do wish he could get some fresh air....). Thanks again!

I have Arts and sports summer camp for 3 years old kids in
Bethesda. Please check our website www.creative-learning-school.com. Kids this age need a good nap and we have everything for it. Very limited spots available.

www.creative-learning-school.com

CCBC, although I don't know how many spots they have for people who don't go to school there.

my gym bethesda / potomac

Hi,
maybe you'd like to register your child to a French camp. The French Academy offers summer camps in Chevy Chase in July. You register for a week. Maybe you should ask if you can do only half days?
Check this link:
http://www.frenchacademy.us/french-for-kids-and-teens/french-youth-camps/index.html

Good luck,
Meg

Geneva day school

My gym? Little gym?

Kidville.

I'm looking for a drop off summer camp for my 3 year old child (his current preschool does not offer a good option for our schedule) - preferably in Bethesda (but would travel to CC/Rockville/Potomac) which offers a part time option (again, preferably two days a week until noon or one, but would do three days).

I've been searching non stop and haven't found anything (and perhaps there isn't anything along these lines, but thought I would ask!). Any help would really be appreciated!!