Sakarya is located in the Marmara region. Its adjacent provinces are Kocaeli to the west, Bilecik to the south, Bolu to the southeast, and Duzce to the east. The capital of Sakarya is Adapazari. The climate is typically Mediterranean due to its close proximity to the Black Sea. The weather is never cold here, with winters having a fair share of rain. Summers are warm and comfortable.
Sakarya is situated on the Ankara-Istanbul Highway. It is well connected through rail, air and road. Istanbul is the nearest airport. The various tourist spots of Sakarya are also well connected by rail and road from Istanbul.
Sakarya is a pretty old city, which dates back to 378 BC. First to come here were the Frigs, Brithians, Kimmers, Lydians and Persians. But Sakarya got it's identity from the Romans and Byzantine rulers, which is quite visible once you go around the place. One of the most important remains of historical significance is the Justinianus Bridge (or Bes Köprü) built by Byzantine Emperor Justinianus in 533AD, which stands tall for history lovers to catch a glimpse. The Ottomans were one of the last to be here.