Accommodation providers such as hotels, campsites, and holiday villages can use ecolabels to show their green credentials to potential customers. Whereas there is extensive literature on ecolabel adoption in the Hotel and Bed and Breakfast (B & B) sector, no such research exists for other accommodation sectors. In this paper, we present the results of statistical analyses of survey data from firms in the Dutch accommodation sector (including hotels, campsites, and group accommodations) with and without the Green Key ecolabel, which is a third-party certified international label for the tourist and leisure sector. We obtain insights into the motivations for adopting (or not), analyze the characteristics of firms with and without the label, and get an indication of the perceived impact of ecolabel adoption on costs and profits. We find that previously found results for hotels and B & Bs do not always apply to other subsectors of the accommodation sector. We also find that obtaining the label required a limited investment for almost half of the sample, and resulted in cost reductions for more than half of the responding firms.