This paper evaluates long-term climate change adaptation strategies in the Netherlands and Bangladesh using the Organisation for Economic Co-operation and Development’s (OECD) Principles of Good Water Governance. Deltas face complex challenges, and adequate long-term planning is essential for these regions. However, experience with these long-term planning efforts and linkages with theoretical frameworks on water-related policy and strategy development remain limited. Both countries politically approved significant investment portfolios for a durable adaptive strategy. This paper highlights the similarities and differences in the resulting strategies. Using the learning assessment methodology, we propose to add risk-based approaches and long-term strategic perspectives as additional OECD Principles in the conclusion.@en