First, you should come to Eyüp with local bus, metrobus or boats from Üsküdar to Eyüp. After you arrive at Eyüp, you can follow the signs for Pierre Loti. You can reach the top with the cable car, which is near Eyüp Sultan Mosque. You can also check the other tourist attractions around Eyüp from Istanbul Tourist Pass. If you wish, you can organize a trip with an Istanbul travel guide.