It is convenient to walk from Yenikapi metro station (20 min) to IDO and get to the desired point along the Marmara Sea. The only thing is, it's not entirely clear where to cross the high road to Ido. In fact, you're looking for an accessible path.
Tickets can be purchased in advance electronically or at the ticket office in IDO. There is a pharmacy, cafeterias and a grocery store on site. Pleasant atmosphere, seats in the waiting area. The information board above the terminal where tickets are checked shows the time and the point where the trip is planned.