Bill Bensley’s personal weekend retreat in the Mae Rim valley, built over nearly two decades, is now bookable as an exclusive-use buyout — thick terracotta walls and shaded casitas in an unexpectedly Hispanic idiom set on 16 hectares of northern Thai jungle, crossed by a private suspension bridge over the river. The head gardener tends endemic plants that erupt during monsoon season with leaves two metres high. Menus are negotiated before arrival.