This story originally appeared on Time.com.

An idyllic Thai island has been so despoiled by tourists that local authorities are being forced to close it to prevent further damage.

Koh Tachai in Thailand’s Ranong Province was rated last year by specialist website beachmeter.com as Thailand’s most beautiful island. However, according to the Bangkok Post, the tourist-ravaged beaches of Koh Tachai will have to close indefinitely from Oct. 15.