The place is called Hamza/Hamza and at the exact coordinates is a parking lot. Between the blocks you can find the container, a round 80 ml box with a screwed on lid.
This cache is not for everybody. There are only two ways to get to it and to Gaza. Either you live there or you are on a mission there.
People on a mission enter through the Israeli checkpoint and then have to stop exactly here and wait approximately 30 minutes to go on further into Gaza. An ideal place to spend the time waiting. Using stealth, taking a break, being smart.
Between the rocks.