John Muir Trust says plans for Kingshouse Hotel do ‘not respect, enhance or make responsible use of our natural and cultural asset’.
A clean-up operation is currently being carried out by SEPA and the Scottish Fire and Rescue Service.
Through its Caledonian Pinewood Recovery Project, the conservation charity wants to help restore 50 areas of remnant and neglected pinewoods which are more than 200 years old but dying with no young trees to succeed them.
Cultural organisations from across Argyll and Bute are invited to attend the latest in a series of interactive workshops.
Fourteen nations will take part, bringing ships, aircraft and troops to military ranges across the country and to maritime exercise areas off the west and north coasts of Scotland.