This is a fairly easy multi cache. Posted coordinates put you at the western entrance of the trail, near pic #1. Cache is located somewhere along the path. Just walk and follow the photos. the pics will lead you through the trail (no need to leave it or cross the channel). Final pic #5 was taken near GZ.
About the place, wadi or vadi is the arab name for a seasonal stream. Tel aviv for example was built on such wadis. In Haifa of course you can find famous neighborhoods named after them. Here at the early days of givatayim along this trail ran one modest wadi (you can still see the modern concrete channel), probably coming all the way from ramat gan. And joining it in the middle was another one from Borochov hill to the north (there is a lovely garden across Katzenelson St. which has the remains of that stream). Today this is a walking trail connecting the synagogue at the starting point and a playground next to another synagogue at the eastern end of it.
BYOP