
YNET reports on some of them:
Hamas alone is currently conducting no less than 300 summer camps for tens of thousands of children, and the focus is on familiarizing kids with the Palestinian towns and cities destroyed in 1948, as well as instilling religious fervor in them. The camps also feature sports and military-type trainings such as crawling under barbed-wire.
Not to be outdone...
Islamic Jihad has also launched its own summer camps, offering some 10,000 children activities similar to those of Hamas. The kids study passages from the Koran and participate in quizzes on religious matters, with emphasis on the required commitment to political prisoners and Palestinian land. They also learn how to hold a Qassam rocket-launcher.

The third organization conducting summer camps in the Gaza Strip is United Nations Relief Association (UNRA.) Fatah is abstaining from camp operation for the second year in a row, due to the limitations placed on the movement by Hamas, as well as its meager financial resources as a result of Hamas’ takeover.
Yet the report on the most alluring summer camp of all is reported on by Sky's Middle East Correspondent Emma Hurd. This veteran 4 -year-old summer camp is at an undisclosed location, and drills children for a full flat-out war and assault on Israel.
The recruits, some of whom are dwarfed by their AK-47 assault rifles, are taught how to carry out ambushes.
They are also made to do an obstacle course, crawling under barbed wire and leaping through hoops of fire while their instructors fire live bullets overhead. Hurd witnessed one training session in which a militant, dressed as a Jewish settler complete with yarmulke skull cap, was ambushed in his car. Gunmen pulled the "settler" from his vehicle and Hurd was told if this had been real he would have been killed.
She spoke to two 10-year-old recruits.
One of them, Mustafa, said he wanted to shoot down Israeli aircraft and blow up tanks.
The camp is run by a group called the Popular Resistance Committee, which said the next generation of Palestinians needed to know how to fight the Israeli "occupation".
The boys even "graduate" at the end of their training, receiving a certificate from the camp commander.
Wherever I am, my blog turns towards Eretz Yisrael טובה הארץ מאד מאד