Fertile Lands
Find this riddle in Hypostyle Hall, of theTemple of Sekhmet at Yamu.
'A few hundred meters north west of the Temple of Sekhmet in Yamu, which resides by Lake Mareotis, there is a great place to go for a date. Full of palm trees and surrounded by desert, one rock fence was built and closed off with no exit. Find me there.'
The location referred to is the same date farm as in the 'Birthright' quest.
Once there, use Senu to find the unbroken fence.
Loot the tall grass there to solve the riddle.