Sultanahmet + Kadıkoy + Beyoğlu (classic + local)
Get lodging near Taksim Square in Beyoğlu and drop off bags
Go directly to Sultanahmet and do activities there until ~5pm
Take the ferry from Eminönü to Kadıkoy
Do dinner and a drink in Kadikoy
Take the metro to Şişhane or take the Ferry to Karaköy
Walk down Istiklal Street back to lodging