TBL Tourism is rated 3 out of 5 in the category hospitality. Read and write reviews about TBL Tourism. Purpose | Triple Bottom Line TBL Tourism is a coalition of non-profit and corporate entities aligned to create an innovative, impact-driven model of hotel development. Our mission is to harness the extractive flow of funds to benefit the communities and ecologies where our properties operate to create triple bottom line value. Our initial region of focus is Puerto Rico, renowned for its unique cultural heritage, natural resources, tourism offerings and strong community resilience.