Tayabas Isthmus

From Wikipedia
https://en.wikipedia.org/wiki/Tayabas_Isthmus
Tayabas Isthmus is located in Philippines
Tayabas Isthmus
Location of Tayabas Isthmus in the Philippines

Tayabas Isthmus, separates the Bicol Peninsula from the main part of Luzon Island, and the Bondoc Peninsula which lies between Tayabas Bay and Ragay Gulf.