Marina do Davi is a river access point and docking area located in Manaus, Amazonas, on the waterways connecting to Igarapé Tarumã-Açu, a tributary of the Rio Negro.

It serves as the primary departure point for passenger boats reaching dozens of road-disconnected riverine communities within and adjacent to the Tupé Sustainable Development Reserve, including settlements along the Tarumã-Açu corridor.

The cooperative ACAMDAF operates scheduled passenger boat services from this marina. The site is a vital transport hub for communities that have no road access, with routes and fares regulated by the cooperative.

During the severe Amazon drought of 2023, falling water levels stranded vessels and made many communities along Tarumã-Açu unreachable by boat, forcing some residents to walk several hours to their homes and halting tourism to the area's sandy-beach destinations entirely.