The answer to "what should we do" in Pendik is usually "head to the shore," because that waterfront path stretches so far nobody's actually met the person who's seen the end of it. Inland, neighborhood diners; near the marina, a more urban feel — bouncing between the two is a whole itinerary by itself. Being close to the airport means everyone treats it as a place they "pass through," when really it's been waiting to be explored. Can't decide? Don't worry about it, the dice will throw for you anyway.