My itinerary

My full itinerary was:

May 22: 
Arrival in Tehran (Imam Khomeini International). Taxi to Couchsurfing (CS) hosts in North Tehran. Night at private home (CS hosts).
May 23: 
Tehran. Night at private home (CS hosts).
May 24: 
Tehran. Night at private home (CS hosts).
May 25: 
Morning bus to Kashan. Night at Ehsan House Hotel (dorm, Rs. 500,000 incl. breakfast. Not recommended).
May 26: 
Hired driver to take me from Kashan to Isfahan, visiting Fin Garden, Abiyaneh and Natanz along the route. Night with friends in Isfahan.
May 27: 
Sightseeing in Isfahan. Night at private home (friends).
May 28: 
Sightseeing in Isfahan. Night at private home (friends).
May 29: 
Sightseeing in Isfahan. Evening bus to Yazd. 
May 30: 
Sightseeing in Yazd. Night at Silk Road Hotel (dorm, Rs. 200,000 incl. breakfast. Recommended)
May 31: 
Morning bus to Shiraz. Night at private home (friends).
June 1: 
Sightseeing in Shiraz. Night at private home (friends).
June 2: 
Sightseeing in Shiraz. Night at private home (friends).
June 3: 
Flight back to Tehran. Night at private home (CS hosts).
June 4: 
Sightseeing in Tehran. Night at private home (friends).
June 5: 
Very early morning flight (6 am) to Berlin.