Quezon is a narrow province, with the Tayabas Isthmus comprising the southern part of the province and connecting it to the Bicol Peninsula. The southern part also consists of the Bondoc Peninsula, sandwiched between the Tayabas Bay and Ragay Gulf. The largest islands in Quezon are the Alabat and Polillo islands, which are both located in Lamon Bay, connecting to Calauag Bay of the town of Calauag.