Biodiversity and tourism

One comes across travel deals offering ‘Island Escapes’, but not ‘Mainland Escapes’. One can buy an ‘Islands’ wall calendar, but asking for a ‘mainland wall calendar’ will surely cock an eyebrow or two. A widely distributed, recent full-page advert by Visa Inc. lists ‘Visit an Uninhabited Island’ as one of 23 ‘[T]hings to do while you’re alive’. Googling the term ‘mainland tourism’ on 2 November 2010 delivered 11,200 hits; but googling ‘island tourism’ on the same day conjured up 717,000.