Approach posted coordinates and start looking around the corner (use spoiler picture if needed).
You're looking for a small black bison tube with a keychain ring. Please write your name/initials using small letters, as there isn't too much space on the log.
Once you've found (or gone desparate :\) the cache, it's highly recommended to go upstairs and enjoy the view (on a bright day you can see Haifa and the Technion buildings!)
Happy birthday Liz! I wish you have a brilliant, DNF-free [after our Rehovot incident] year!