To have there, you can take the public bus no 55 or 99A. You can even take the M7 metro to Basaksehir Metrokent and take the HAVAIST from there.The bus employees explained to me that I must go ahead and take bus to Esenler bus station very first, before transferring to another bus to Yalova. I compensated a hundred twenty five TL (all around $7 USD