Special Forces operational detachments A (SFODAs) must conduct a detailed mission analysis to determine an appropriate method of infiltration. SF maritime operations are one of the many options available to a commander to infiltrate and exfiltrate a detachment into (or out of) a designated area of operations (AO) for the purpose of executing any of the SF missions. A thorough understanding of all factors impacting waterbornerelated missions is essential due to the inherently higher levels of risk associated with even the most routine waterborne operations. The objective of this chapter is to outline mission, enemy, terrain and weather, troops and support available—time available and civil considerations (METT-TC) and planning considerations needed to successfully execute all types of waterborne operations.