Boon Nak Cave is located on a mountain in Takhli District, Nakhon Sawan. It is a stunning and serene natural cave featuring exquisite stalactites and stalagmites formed over centuries. The interior remains naturally cool and has been designated as a religious sanctuary. Several Buddha images are enshrined within, allowing visitors and practitioners to pay respects and engage in meditation amidst the tranquility of the limestone caverns.