Tham Phra Nang Nai

Lonely Planet may earn a commission from affiliate links on our site. All recommendations and reviews reflect our own independent opinions.

A wooden boardwalk leads through a series of illuminated caverns full of beautiful limestone formations (and squeaking bats) but, with shifting rain patterns, the water is now gone and with it the luminescent effects that won it the 'diamond' moniker. It's pricey for what you see. Follow signs north off Walking St (five minutes' walk).

Book popular activities

Must-see attractions

Explore all