Below are Websites to check out for more High School Programming.
Regional, National, and International Youth and High School Programming

Year Round:
North American Federation of Temple Youth (NFTY)-New York Area Region: http://www.nfty.org/nar
Weekends away with other Jewish teens in the New York Area about once a month.

Eisendrath International Exchange:
http://www.nftyisrael.org/eie/
Summer, Semester and Year-Long high school program in Israel.

Summer:
URJ Camps Eisner and Crane Lake:
http://necamps.urjcamps.org/
Regional Reform Jewish summer camps in the Berkshires.

URJ Camp Kutz:
http://kutz.urjcamps.org/
Leadership Camp only for High School Students in upstate New York. Several different "tracks" available, including songleading, Judaic studies, Tikkun Olam, and working with special needs children.

NFTY in Israel:
http://www.nftyisrael.org/summer/
A variety of different, six-week programs in Europe and Israel.

NFTY Mitzvah Corps:
http://www.nftymitzvahcorps.org/
6-week Social Action projects in San Francisco, New Jersey, New York, and Mississippi.