These neighbouring hilltop monasteries are of interest due to their vastly different styles. Wat Tham Khao Noi (Little Hill Cave Monastery) has an intricately designed Chinese-style pagoda while next door the larger Wat Tham Seua (Tiger Cave Monastery) has several styles of chedi and an 18m-tall Buddha covered in a golden mosaic.
In front of the Buddha image a conveyor belt has small silver trays into which donations are made and then tipped into a central pot. You can walk to the top or take the easy option and go by cable car (10B).
The temples are around 14km south of the town centre. If coming by motorbike, take the right fork of the highway when you reach Tha Meuang, turn right across the Kheuan Meuang (City Dam) and right again on the other side. By bicycle, avoid the highway by using back roads that follow the river. Follow Th Pak Phraek and cross the bridge towards Wat Tham Mangkon Thong. Once over the bridge, turn left and follow the river for 14km, at which point you should see the hilltop pagodas on your right. Buses (10B) leave from Kanchanaburi bus station to Ratchaburi every 20 minutes. Get off at Tha Meuang Hospital and hire a motorbike taxi (40B).