Warning: Koh Chang Holidays & Insurance Risks
 

The UK FCDO currently advises against all but essential travel within 50km of the Thai-Cambodian border — this includes Koh Chang (and Koh Kood)

Most standard travel insurance will NOT cover you if you travel to a destination under this advisory. Yet tour companies are still selling Koh Chang holidays, sometimes even with insurance that appears invalid for the trip.

Travellers need to be aware: if you book Koh Chang now, you may be going without any effective cover. CHECK YOUR COVER – hopefully the FDCO will change their minds but up till 21 sept the advice still stands

https://www.gov.uk/foreign-travel-advice/thailand