Marine and coastal ecosystems are increasingly being degraded or destroyed even as human dependence on their ecosystem services is increasing. New conservation tools are continually being developed, but successful implementation is constrained by lack of adequate funding. Recent reports on the potential ability of “blue forest” coastal ecosystems to sequester significant amounts of carbon is pointing the marine conservation community toward carbon credit as a potential management as well as financing tool. Marine and coastal ecosystems provide a multitude of ecosystem services beyond carbon sequestration, such as coastal protection, fish nursery, water purification, and marine biodiversity. The opportunity exists to develop payments for these ecosystem services and capture their as yet uncaptured value to finance their protection. This paper explores the use of payment for ecosystem services (PES) in marine and coastal settings and focuses on those services found in “blue forests”. The challenges and necessary considerations for developing coastal and marine PES are discussed and the conceptual framework for developing payment schemes for five characteristic ecosystem services in blue forests are presented.