This document discusses observations and ideas about the GEF's work on international waters projects. It addresses whether the TDA/SAP approach can work, if it is working, if it is too early to tell, and what constraints are being ignored. Key points made include that the TDA/SAP process takes a long time but builds ownership, immediate actions may be needed for success, and national commitment is required to implement SAPs. While frameworks for cooperation have been developed, it is still early to see environmental results. Political will for reform and linking projects to development are important overlooked constraints. The implications for the GEF include taking a flexible approach, ensuring riparian ownership, and providing long-term support and learning across projects