İstanbul Büyükşehir Belediyesi Beykoz Spor Kompleksi is one of the sports facilities in Beykoz. The city has no shortage of places to work out, but showing up regularly comes down to distance. If this one's close to you, it's already won half the battle — equipment quality matters less than whether you'll actually go. Weigh location against your schedule before signing up for a membership.