Nature therapy has caught therapists and researchers’ attention in the past few years, with increasingly more papers, research articles, and websites discussing the engagement of nature for therapeutic purposes. This paper discusses the nature and types of nature therapy and introduces the theoretical assumptions behind its mechanisms, bene?ts and potential. Most studies and review papers confirmed the health benefits of nature therapy, especially regarding mental health. There is less evidence, however, in terms of its physiological benefits. Nature or nature-based therapies can potentially incorporate sustainability into non-pharmacotherapeutics in the healthcare sector. However, the deterioration of the natural environment is a significant threat to the future of nature therapy. Nature is vulnerable and hinged on a dynamic balance. Humanity has witnessed significant destruction of the natural environment in this era of drastic climate change. Therefore, while banking on the benefits of engaging nature or using nature-based materials as therapy, we must be cognizant that there will be no nature therapy without environmental protection. Last, this paper argues that scientists and healthcare disciplines must advocate for environmental conservation and the safety of nature and protectionfor nature andfor human health. Research directions for the future are proposed.