Walking the blue (geo)trail in wadi Lotem in Haifa
The blue trail starts at Gan HaEm in the Carmel Center and continue down for 4 km, walking in nature in the city of Haifa (a significant part) and end very close to the sea. You can use the Gan Haem cache as a waypoint even though that cache is not part of this geotrail. The GPS reception can be problematic in wadis so use the hints. All caches are PET micros. Do not forget to copy the bonus numbers that can be found at the beginning of the logbook in each cache.
The fourth cache is in a nearby location that looks inviting to hide a cache there.