Tham Phrathat Charoen Tham
(ถ้ำพระธาตุเจริญธรรมหรือถ้ำบ่อปลา สระบุรี)
Saraburi
The passage from its entrance is laid by the marble leading the way through the cave. The cave is divided into 3 big rooms. The first one called “Tham Bo Pla” where a large number of fish swim into the area. “Tham Thong Phra Rong” is the second room in which lie beautiful stalagmites and stalactites in a shape similar to Kuan Im Bodhisattva and Hok Lok Sio, the three Chinese gods. The third room is also divided into small rooms with many shapes of stalagmites and stalactites, similar to coral reefs. It can be visited in the dry season. Moreover, at its back lie 2 large caves including Tham Sam Khao and Tham Thep Prathan. 
    The cave is closed on weekdays and open during the weekends from 8.00 a.m. - 6.00 p.m. 
    In the cave resides Luangpho Yai, a stucco Buddha image with black lacquer applied, as well as, covered with gold leaves in the gesture of subduing Mara from the Ayutthaya period.
     To get there: The cave is accessible via 2 routes. Drive for 12 kilometres from the town along Mittraphap Road and turn left to Kaeng Khoi District through the market and continue for 8 kilometres over the Adireksan Bridge. 
    Alternatively, drive for 15 kilometres from the town along Highway No. 1 to Phu Khae Witthaya School and then drive for 10 kilometres on the Phu Khae - Kaeng Khoi Road.