This paper considers the implications of the growing recognition of scale challenges, with a particular focus on those concerning the governance of protected areas (PAs), through a critical literature review. Two key scale challenges raised by PAs are considered: (1) the divergence of objectives between resource exploitation and biodiversity conservation; (2) the requirement to fulfil biodiversity conservation obligations. These are explored through a review of a UK marine PA case study which found that though even though the state had adopted a controlling role that had created tensions by undermining the authority and livelihoods of some stakeholders, the partnership had been sufficiently strengthened to withstand these tensions through the instrumental development of ‘bracing social capital’. Four conclusions for governance research with a particular reference to PA governance are drawn and it is argued that presumptions based on Habermasian ideals should not constrain governance analyses, in that they should constructively incorporate the instrumental roles of the state.