You can arrive at Yelken Boardinghouse by;
1-İSTANBUL : From Yenikapı or Bostancı to Armutlu (it takes 60 minutes by İDO)
2-İSTANBUL : From Pendik to Armutlu (it takes 30 minutes by İDO)
3-Yalova overland route : From gemlik to Armutlu (it's only 40 km)
From Çınarcık to Armutlu (it takes 50 minutes)